81395820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:293

約数の個数: 192

約数和(自身を含む): 281594880

約数和(自身を除く): 200199060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 71, 90, 99, 108, 110, 132, 135, 142, 165, 180, 193, 198, 213, 220, 270, 284, 297, 330, 355, 386, 396, 426, 495, 540, 579, 594, 639, 660, 710, 772, 781, 852, 965, 990, 1065, 1158, 1188, 1278, 1420, 1485, 1562, 1737, 1917, 1930, 1980, 2123, 2130, 2316, 2343, 2556, 2895, 2970, 3124, 3195, 3474, 3834, 3860, 3905, 4246, 4260, 4686, 5211, 5790, 5940, 6369, 6390, 6948, 7029, 7668, 7810, 8492, 8685, 9372, 9585, 10422, 10615, 11580, 11715, 12738, 12780, 13703, 14058, 15620, 17370, 19107, 19170, 20844, 21087, 21230, 23430, 25476, 26055, 27406, 28116, 31845, 34740, 35145, 38214, 38340, 41109, 42174, 42460, 46860, 52110, 54812, 57321, 63690, 68515, 70290, 76428, 82218, 84348, 95535, 104220, 105435, 114642, 123327, 127380, 137030, 140580, 150733, 164436, 191070, 205545, 210870, 229284, 246654, 274060, 286605, 301466, 369981, 382140, 411090, 421740, 452199, 493308, 573210, 602932, 616635, 739962, 753665, 822180, 904398, 1146420, 1233270, 1356597, 1479924, 1507330, 1808796, 1849905, 2260995, 2466540, 2713194, 3014660, 3699810, 4069791, 4521990, 5426388, 6782985, 7399620, 8139582, 9043980, 13565970, 16279164, 20348955, 27131940, 40697910, 81395820]

約数ペア:

[(1, 81395820), (2, 40697910), (3, 27131940), (4, 20348955), (5, 16279164), (6, 13565970), (9, 9043980), (10, 8139582), (11, 7399620), (12, 6782985), (15, 5426388), (18, 4521990), (20, 4069791), (22, 3699810), (27, 3014660), (30, 2713194), (33, 2466540), (36, 2260995), (44, 1849905), (45, 1808796), (54, 1507330), (55, 1479924), (60, 1356597), (66, 1233270), (71, 1146420), (90, 904398), (99, 822180), (108, 753665), (110, 739962), (132, 616635), (135, 602932), (142, 573210), (165, 493308), (180, 452199), (193, 421740), (198, 411090), (213, 382140), (220, 369981), (270, 301466), (284, 286605), (297, 274060), (330, 246654), (355, 229284), (386, 210870), (396, 205545), (426, 191070), (495, 164436), (540, 150733), (579, 140580), (594, 137030), (639, 127380), (660, 123327), (710, 114642), (772, 105435), (781, 104220), (852, 95535), (965, 84348), (990, 82218), (1065, 76428), (1158, 70290), (1188, 68515), (1278, 63690), (1420, 57321), (1485, 54812), (1562, 52110), (1737, 46860), (1917, 42460), (1930, 42174), (1980, 41109), (2123, 38340), (2130, 38214), (2316, 35145), (2343, 34740), (2556, 31845), (2895, 28116), (2970, 27406), (3124, 26055), (3195, 25476), (3474, 23430), (3834, 21230), (3860, 21087), (3905, 20844), (4246, 19170), (4260, 19107), (4686, 17370), (5211, 15620), (5790, 14058), (5940, 13703), (6369, 12780), (6390, 12738), (6948, 11715), (7029, 11580), (7668, 10615), (7810, 10422), (8492, 9585), (8685, 9372)]