81019740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{1013}}^1$

素因数の和:1099

約数の個数: 96

約数和(自身を含む): 239855616

約数和(自身を除く): 158835876

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 43, 60, 62, 86, 93, 124, 129, 155, 172, 186, 215, 258, 310, 372, 430, 465, 516, 620, 645, 860, 930, 1013, 1290, 1333, 1860, 2026, 2580, 2666, 3039, 3999, 4052, 5065, 5332, 6078, 6665, 7998, 10130, 12156, 13330, 15195, 15996, 19995, 20260, 26660, 30390, 31403, 39990, 43559, 60780, 62806, 79980, 87118, 94209, 125612, 130677, 157015, 174236, 188418, 217795, 261354, 314030, 376836, 435590, 471045, 522708, 628060, 653385, 871180, 942090, 1306770, 1350329, 1884180, 2613540, 2700658, 4050987, 5401316, 6751645, 8101974, 13503290, 16203948, 20254935, 27006580, 40509870, 81019740]

約数ペア:

[(1, 81019740), (2, 40509870), (3, 27006580), (4, 20254935), (5, 16203948), (6, 13503290), (10, 8101974), (12, 6751645), (15, 5401316), (20, 4050987), (30, 2700658), (31, 2613540), (43, 1884180), (60, 1350329), (62, 1306770), (86, 942090), (93, 871180), (124, 653385), (129, 628060), (155, 522708), (172, 471045), (186, 435590), (215, 376836), (258, 314030), (310, 261354), (372, 217795), (430, 188418), (465, 174236), (516, 157015), (620, 130677), (645, 125612), (860, 94209), (930, 87118), (1013, 79980), (1290, 62806), (1333, 60780), (1860, 43559), (2026, 39990), (2580, 31403), (2666, 30390), (3039, 26660), (3999, 20260), (4052, 19995), (5065, 15996), (5332, 15195), (6078, 13330), (6665, 12156), (7998, 10130)]