638833860

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:323

約数の個数: 288

約数和(自身を含む): 2318464512

約数和(自身を除く): 1679630652

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 37, 42, 45, 60, 63, 70, 71, 74, 84, 90, 105, 111, 126, 140, 142, 148, 180, 185, 193, 210, 213, 222, 252, 259, 284, 315, 333, 355, 370, 386, 420, 426, 444, 497, 518, 555, 579, 630, 639, 666, 710, 740, 772, 777, 852, 965, 994, 1036, 1065, 1110, 1158, 1260, 1278, 1295, 1332, 1351, 1420, 1491, 1554, 1665, 1737, 1930, 1988, 2130, 2220, 2316, 2331, 2485, 2556, 2590, 2627, 2702, 2895, 2982, 3108, 3195, 3330, 3474, 3860, 3885, 4053, 4260, 4473, 4662, 4970, 5180, 5254, 5404, 5790, 5964, 6390, 6660, 6755, 6948, 7141, 7455, 7770, 7881, 8106, 8685, 8946, 9324, 9940, 10508, 11580, 11655, 12159, 12780, 13135, 13510, 13703, 14282, 14910, 15540, 15762, 16212, 17370, 17892, 18389, 20265, 21423, 22365, 23310, 23643, 24318, 26270, 27020, 27406, 28564, 29820, 31524, 34740, 35705, 36778, 39405, 40530, 41109, 42846, 44730, 46620, 47286, 48636, 49987, 52540, 54812, 55167, 60795, 64269, 68515, 71410, 73556, 78810, 81060, 82218, 85692, 89460, 91945, 94572, 95921, 99974, 107115, 110334, 118215, 121590, 123327, 128538, 137030, 142820, 149961, 157620, 164436, 165501, 183890, 191842, 199948, 205545, 214230, 220668, 236430, 243180, 246654, 249935, 257076, 274060, 275835, 287763, 299922, 321345, 331002, 367780, 383684, 411090, 428460, 449883, 472860, 479605, 493308, 499870, 507011, 551670, 575526, 599844, 616635, 642690, 662004, 749805, 822180, 827505, 863289, 899766, 959210, 999740, 1014022, 1103340, 1151052, 1233270, 1285380, 1438815, 1499610, 1521033, 1655010, 1726578, 1799532, 1918420, 2028044, 2249415, 2466540, 2535055, 2877630, 2999220, 3042066, 3310020, 3453156, 3549077, 4316445, 4498830, 4563099, 5070110, 5755260, 6084132, 7098154, 7605165, 8632890, 8997660, 9126198, 10140220, 10647231, 14196308, 15210330, 17265780, 17745385, 18252396, 21294462, 22815495, 30420660, 31941693, 35490770, 42588924, 45630990, 53236155, 63883386, 70981540, 91261980, 106472310, 127766772, 159708465, 212944620, 319416930, 638833860]

約数ペア:

[(1, 638833860), (2, 319416930), (3, 212944620), (4, 159708465), (5, 127766772), (6, 106472310), (7, 91261980), (9, 70981540), (10, 63883386), (12, 53236155), (14, 45630990), (15, 42588924), (18, 35490770), (20, 31941693), (21, 30420660), (28, 22815495), (30, 21294462), (35, 18252396), (36, 17745385), (37, 17265780), (42, 15210330), (45, 14196308), (60, 10647231), (63, 10140220), (70, 9126198), (71, 8997660), (74, 8632890), (84, 7605165), (90, 7098154), (105, 6084132), (111, 5755260), (126, 5070110), (140, 4563099), (142, 4498830), (148, 4316445), (180, 3549077), (185, 3453156), (193, 3310020), (210, 3042066), (213, 2999220), (222, 2877630), (252, 2535055), (259, 2466540), (284, 2249415), (315, 2028044), (333, 1918420), (355, 1799532), (370, 1726578), (386, 1655010), (420, 1521033), (426, 1499610), (444, 1438815), (497, 1285380), (518, 1233270), (555, 1151052), (579, 1103340), (630, 1014022), (639, 999740), (666, 959210), (710, 899766), (740, 863289), (772, 827505), (777, 822180), (852, 749805), (965, 662004), (994, 642690), (1036, 616635), (1065, 599844), (1110, 575526), (1158, 551670), (1260, 507011), (1278, 499870), (1295, 493308), (1332, 479605), (1351, 472860), (1420, 449883), (1491, 428460), (1554, 411090), (1665, 383684), (1737, 367780), (1930, 331002), (1988, 321345), (2130, 299922), (2220, 287763), (2316, 275835), (2331, 274060), (2485, 257076), (2556, 249935), (2590, 246654), (2627, 243180), (2702, 236430), (2895, 220668), (2982, 214230), (3108, 205545), (3195, 199948), (3330, 191842), (3474, 183890), (3860, 165501), (3885, 164436), (4053, 157620), (4260, 149961), (4473, 142820), (4662, 137030), (4970, 128538), (5180, 123327), (5254, 121590), (5404, 118215), (5790, 110334), (5964, 107115), (6390, 99974), (6660, 95921), (6755, 94572), (6948, 91945), (7141, 89460), (7455, 85692), (7770, 82218), (7881, 81060), (8106, 78810), (8685, 73556), (8946, 71410), (9324, 68515), (9940, 64269), (10508, 60795), (11580, 55167), (11655, 54812), (12159, 52540), (12780, 49987), (13135, 48636), (13510, 47286), (13703, 46620), (14282, 44730), (14910, 42846), (15540, 41109), (15762, 40530), (16212, 39405), (17370, 36778), (17892, 35705), (18389, 34740), (20265, 31524), (21423, 29820), (22365, 28564), (23310, 27406), (23643, 27020), (24318, 26270)]