17957960

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{137}}^1$

素因数の和:290

約数の個数: 64

約数和(自身を含む): 42476400

約数和(自身を除く): 24518440

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 113, 116, 137, 145, 226, 232, 274, 290, 452, 548, 565, 580, 685, 904, 1096, 1130, 1160, 1370, 2260, 2740, 3277, 3973, 4520, 5480, 6554, 7946, 13108, 15481, 15892, 16385, 19865, 26216, 30962, 31784, 32770, 39730, 61924, 65540, 77405, 79460, 123848, 131080, 154810, 158920, 309620, 448949, 619240, 897898, 1795796, 2244745, 3591592, 4489490, 8978980, 17957960]

約数ペア:

[(1, 17957960), (2, 8978980), (4, 4489490), (5, 3591592), (8, 2244745), (10, 1795796), (20, 897898), (29, 619240), (40, 448949), (58, 309620), (113, 158920), (116, 154810), (137, 131080), (145, 123848), (226, 79460), (232, 77405), (274, 65540), (290, 61924), (452, 39730), (548, 32770), (565, 31784), (580, 30962), (685, 26216), (904, 19865), (1096, 16385), (1130, 15892), (1160, 15481), (1370, 13108), (2260, 7946), (2740, 6554), (3277, 5480), (3973, 4520)]