31327360

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1579}}^1$

素因数の和:1629

約数の個数: 64

約数和(自身を含む): 77356800

約数和(自身を除く): 46029440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1579, 1984, 2480, 3158, 3968, 4960, 6316, 7895, 9920, 12632, 15790, 19840, 25264, 31580, 48949, 50528, 63160, 97898, 101056, 126320, 195796, 202112, 244745, 252640, 391592, 489490, 505280, 783184, 978980, 1010560, 1566368, 1957960, 3132736, 3915920, 6265472, 7831840, 15663680, 31327360]

約数ペア:

[(1, 31327360), (2, 15663680), (4, 7831840), (5, 6265472), (8, 3915920), (10, 3132736), (16, 1957960), (20, 1566368), (31, 1010560), (32, 978980), (40, 783184), (62, 505280), (64, 489490), (80, 391592), (124, 252640), (128, 244745), (155, 202112), (160, 195796), (248, 126320), (310, 101056), (320, 97898), (496, 63160), (620, 50528), (640, 48949), (992, 31580), (1240, 25264), (1579, 19840), (1984, 15790), (2480, 12632), (3158, 9920), (3968, 7895), (4960, 6316)]