81481020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{617}}^1$

素因数の和:731

約数の個数: 96

約数和(自身を含む): 239210496

約数和(自身を除く): 157729476

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 71, 93, 124, 142, 155, 186, 213, 284, 310, 355, 372, 426, 465, 617, 620, 710, 852, 930, 1065, 1234, 1420, 1851, 1860, 2130, 2201, 2468, 3085, 3702, 4260, 4402, 6170, 6603, 7404, 8804, 9255, 11005, 12340, 13206, 18510, 19127, 22010, 26412, 33015, 37020, 38254, 43807, 44020, 57381, 66030, 76508, 87614, 95635, 114762, 131421, 132060, 175228, 191270, 219035, 229524, 262842, 286905, 382540, 438070, 525684, 573810, 657105, 876140, 1147620, 1314210, 1358017, 2628420, 2716034, 4074051, 5432068, 6790085, 8148102, 13580170, 16296204, 20370255, 27160340, 40740510, 81481020]

約数ペア:

[(1, 81481020), (2, 40740510), (3, 27160340), (4, 20370255), (5, 16296204), (6, 13580170), (10, 8148102), (12, 6790085), (15, 5432068), (20, 4074051), (30, 2716034), (31, 2628420), (60, 1358017), (62, 1314210), (71, 1147620), (93, 876140), (124, 657105), (142, 573810), (155, 525684), (186, 438070), (213, 382540), (284, 286905), (310, 262842), (355, 229524), (372, 219035), (426, 191270), (465, 175228), (617, 132060), (620, 131421), (710, 114762), (852, 95635), (930, 87614), (1065, 76508), (1234, 66030), (1420, 57381), (1851, 44020), (1860, 43807), (2130, 38254), (2201, 37020), (2468, 33015), (3085, 26412), (3702, 22010), (4260, 19127), (4402, 18510), (6170, 13206), (6603, 12340), (7404, 11005), (8804, 9255)]