81319920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{30803}}^1$

素因数の和:30830

約数の個数: 80

約数和(自身を含む): 275018112

約数和(自身を除く): 193698192

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 30803, 61606, 92409, 123212, 154015, 184818, 246424, 308030, 338833, 369636, 462045, 492848, 616060, 677666, 739272, 924090, 1016499, 1232120, 1355332, 1478544, 1694165, 1848180, 2032998, 2464240, 2710664, 3388330, 3696360, 4065996, 5082495, 5421328, 6776660, 7392720, 8131992, 10164990, 13553320, 16263984, 20329980, 27106640, 40659960, 81319920]

約数ペア:

[(1, 81319920), (2, 40659960), (3, 27106640), (4, 20329980), (5, 16263984), (6, 13553320), (8, 10164990), (10, 8131992), (11, 7392720), (12, 6776660), (15, 5421328), (16, 5082495), (20, 4065996), (22, 3696360), (24, 3388330), (30, 2710664), (33, 2464240), (40, 2032998), (44, 1848180), (48, 1694165), (55, 1478544), (60, 1355332), (66, 1232120), (80, 1016499), (88, 924090), (110, 739272), (120, 677666), (132, 616060), (165, 492848), (176, 462045), (220, 369636), (240, 338833), (264, 308030), (330, 246424), (440, 184818), (528, 154015), (660, 123212), (880, 92409), (1320, 61606), (2640, 30803)]