81879200

素因数分解:

$2^5\times 5^2\times {\mathrm{13}}^1\times {\mathrm{7873}}^1$

素因数の和:7906

約数の個数: 72

約数和(自身を含む): 215290908

約数和(自身を除く): 133411708

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 65, 80, 100, 104, 130, 160, 200, 208, 260, 325, 400, 416, 520, 650, 800, 1040, 1300, 2080, 2600, 5200, 7873, 10400, 15746, 31492, 39365, 62984, 78730, 102349, 125968, 157460, 196825, 204698, 251936, 314920, 393650, 409396, 511745, 629840, 787300, 818792, 1023490, 1259680, 1574600, 1637584, 2046980, 2558725, 3149200, 3275168, 4093960, 5117450, 6298400, 8187920, 10234900, 16375840, 20469800, 40939600, 81879200]

約数ペア:

[(1, 81879200), (2, 40939600), (4, 20469800), (5, 16375840), (8, 10234900), (10, 8187920), (13, 6298400), (16, 5117450), (20, 4093960), (25, 3275168), (26, 3149200), (32, 2558725), (40, 2046980), (50, 1637584), (52, 1574600), (65, 1259680), (80, 1023490), (100, 818792), (104, 787300), (130, 629840), (160, 511745), (200, 409396), (208, 393650), (260, 314920), (325, 251936), (400, 204698), (416, 196825), (520, 157460), (650, 125968), (800, 102349), (1040, 78730), (1300, 62984), (2080, 39365), (2600, 31492), (5200, 15746), (7873, 10400)]