72419960

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{419}}^1$

素因数の和:608

約数の個数: 64

約数和(自身を含む): 170100000

約数和(自身を除く): 97680040

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 149, 232, 290, 298, 419, 580, 596, 745, 838, 1160, 1192, 1490, 1676, 2095, 2980, 3352, 4190, 4321, 5960, 8380, 8642, 12151, 16760, 17284, 21605, 24302, 34568, 43210, 48604, 60755, 62431, 86420, 97208, 121510, 124862, 172840, 243020, 249724, 312155, 486040, 499448, 624310, 1248620, 1810499, 2497240, 3620998, 7241996, 9052495, 14483992, 18104990, 36209980, 72419960]

約数ペア:

[(1, 72419960), (2, 36209980), (4, 18104990), (5, 14483992), (8, 9052495), (10, 7241996), (20, 3620998), (29, 2497240), (40, 1810499), (58, 1248620), (116, 624310), (145, 499448), (149, 486040), (232, 312155), (290, 249724), (298, 243020), (419, 172840), (580, 124862), (596, 121510), (745, 97208), (838, 86420), (1160, 62431), (1192, 60755), (1490, 48604), (1676, 43210), (2095, 34568), (2980, 24302), (3352, 21605), (4190, 17284), (4321, 16760), (5960, 12151), (8380, 8642)]