81863760

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{2819}}^1$

素因数の和:2857

約数の個数: 120

約数和(自身を含む): 279044640

約数和(自身を除く): 197180880

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, 121, 132, 165, 176, 220, 240, 242, 264, 330, 363, 440, 484, 528, 605, 660, 726, 880, 968, 1210, 1320, 1452, 1815, 1936, 2420, 2640, 2819, 2904, 3630, 4840, 5638, 5808, 7260, 8457, 9680, 11276, 14095, 14520, 16914, 22552, 28190, 29040, 31009, 33828, 42285, 45104, 56380, 62018, 67656, 84570, 93027, 112760, 124036, 135312, 155045, 169140, 186054, 225520, 248072, 310090, 338280, 341099, 372108, 465135, 496144, 620180, 676560, 682198, 744216, 930270, 1023297, 1240360, 1364396, 1488432, 1705495, 1860540, 2046594, 2480720, 2728792, 3410990, 3721080, 4093188, 5116485, 5457584, 6821980, 7442160, 8186376, 10232970, 13643960, 16372752, 20465940, 27287920, 40931880, 81863760]

約数ペア:

[(1, 81863760), (2, 40931880), (3, 27287920), (4, 20465940), (5, 16372752), (6, 13643960), (8, 10232970), (10, 8186376), (11, 7442160), (12, 6821980), (15, 5457584), (16, 5116485), (20, 4093188), (22, 3721080), (24, 3410990), (30, 2728792), (33, 2480720), (40, 2046594), (44, 1860540), (48, 1705495), (55, 1488432), (60, 1364396), (66, 1240360), (80, 1023297), (88, 930270), (110, 744216), (120, 682198), (121, 676560), (132, 620180), (165, 496144), (176, 465135), (220, 372108), (240, 341099), (242, 338280), (264, 310090), (330, 248072), (363, 225520), (440, 186054), (484, 169140), (528, 155045), (605, 135312), (660, 124036), (726, 112760), (880, 93027), (968, 84570), (1210, 67656), (1320, 62018), (1452, 56380), (1815, 45104), (1936, 42285), (2420, 33828), (2640, 31009), (2819, 29040), (2904, 28190), (3630, 22552), (4840, 16914), (5638, 14520), (5808, 14095), (7260, 11276), (8457, 9680)]