640947300

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1$

素因数の和:247

約数の個数: 288

約数和(自身を含む): 2226024192

約数和(自身を除く): 1585076892

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 37, 42, 50, 60, 70, 73, 74, 75, 84, 100, 105, 111, 113, 140, 146, 148, 150, 175, 185, 210, 219, 222, 226, 259, 292, 300, 339, 350, 365, 370, 420, 438, 444, 452, 511, 518, 525, 555, 565, 678, 700, 730, 740, 777, 791, 876, 925, 1022, 1036, 1050, 1095, 1110, 1130, 1295, 1356, 1460, 1533, 1554, 1582, 1695, 1825, 1850, 2044, 2100, 2190, 2220, 2260, 2373, 2555, 2590, 2701, 2775, 2825, 3066, 3108, 3164, 3390, 3650, 3700, 3885, 3955, 4181, 4380, 4746, 5110, 5180, 5402, 5475, 5550, 5650, 6132, 6475, 6780, 7300, 7665, 7770, 7910, 8103, 8249, 8362, 8475, 9492, 10220, 10804, 10950, 11100, 11300, 11865, 12543, 12775, 12950, 13505, 15330, 15540, 15820, 16206, 16498, 16724, 16950, 18907, 19425, 19775, 20905, 21900, 23730, 24747, 25086, 25550, 25900, 27010, 29267, 30660, 32412, 32996, 33900, 37814, 38325, 38850, 39550, 40515, 41245, 41810, 47460, 49494, 50172, 51100, 54020, 56721, 57743, 58534, 59325, 62715, 67525, 75628, 76650, 77700, 79100, 81030, 82490, 83620, 87801, 94535, 98988, 104525, 113442, 115486, 117068, 118650, 123735, 125430, 135050, 146335, 153300, 162060, 164980, 173229, 175602, 189070, 202575, 206225, 209050, 226884, 230972, 237300, 247470, 250860, 270100, 283605, 288715, 292670, 305213, 313575, 346458, 351204, 378140, 405150, 412450, 418100, 439005, 472675, 494940, 567210, 577430, 585340, 610426, 618675, 627150, 692916, 731675, 810300, 824900, 866145, 878010, 915639, 945350, 1134420, 1154860, 1220852, 1237350, 1254300, 1418025, 1443575, 1463350, 1526065, 1732290, 1756020, 1831278, 1890700, 2136491, 2195025, 2474700, 2836050, 2887150, 2926700, 3052130, 3464580, 3662556, 4272982, 4330725, 4390050, 4578195, 5672100, 5774300, 6104260, 6409473, 7630325, 8545964, 8661450, 8780100, 9156390, 10682455, 12818946, 15260650, 17322900, 18312780, 21364910, 22890975, 25637892, 30521300, 32047365, 42729820, 45781950, 53412275, 64094730, 91563900, 106824550, 128189460, 160236825, 213649100, 320473650, 640947300]

約数ペア:

[(1, 640947300), (2, 320473650), (3, 213649100), (4, 160236825), (5, 128189460), (6, 106824550), (7, 91563900), (10, 64094730), (12, 53412275), (14, 45781950), (15, 42729820), (20, 32047365), (21, 30521300), (25, 25637892), (28, 22890975), (30, 21364910), (35, 18312780), (37, 17322900), (42, 15260650), (50, 12818946), (60, 10682455), (70, 9156390), (73, 8780100), (74, 8661450), (75, 8545964), (84, 7630325), (100, 6409473), (105, 6104260), (111, 5774300), (113, 5672100), (140, 4578195), (146, 4390050), (148, 4330725), (150, 4272982), (175, 3662556), (185, 3464580), (210, 3052130), (219, 2926700), (222, 2887150), (226, 2836050), (259, 2474700), (292, 2195025), (300, 2136491), (339, 1890700), (350, 1831278), (365, 1756020), (370, 1732290), (420, 1526065), (438, 1463350), (444, 1443575), (452, 1418025), (511, 1254300), (518, 1237350), (525, 1220852), (555, 1154860), (565, 1134420), (678, 945350), (700, 915639), (730, 878010), (740, 866145), (777, 824900), (791, 810300), (876, 731675), (925, 692916), (1022, 627150), (1036, 618675), (1050, 610426), (1095, 585340), (1110, 577430), (1130, 567210), (1295, 494940), (1356, 472675), (1460, 439005), (1533, 418100), (1554, 412450), (1582, 405150), (1695, 378140), (1825, 351204), (1850, 346458), (2044, 313575), (2100, 305213), (2190, 292670), (2220, 288715), (2260, 283605), (2373, 270100), (2555, 250860), (2590, 247470), (2701, 237300), (2775, 230972), (2825, 226884), (3066, 209050), (3108, 206225), (3164, 202575), (3390, 189070), (3650, 175602), (3700, 173229), (3885, 164980), (3955, 162060), (4181, 153300), (4380, 146335), (4746, 135050), (5110, 125430), (5180, 123735), (5402, 118650), (5475, 117068), (5550, 115486), (5650, 113442), (6132, 104525), (6475, 98988), (6780, 94535), (7300, 87801), (7665, 83620), (7770, 82490), (7910, 81030), (8103, 79100), (8249, 77700), (8362, 76650), (8475, 75628), (9492, 67525), (10220, 62715), (10804, 59325), (10950, 58534), (11100, 57743), (11300, 56721), (11865, 54020), (12543, 51100), (12775, 50172), (12950, 49494), (13505, 47460), (15330, 41810), (15540, 41245), (15820, 40515), (16206, 39550), (16498, 38850), (16724, 38325), (16950, 37814), (18907, 33900), (19425, 32996), (19775, 32412), (20905, 30660), (21900, 29267), (23730, 27010), (24747, 25900), (25086, 25550)]