64993740

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{154747}}^1$

素因数の和:154766

約数の個数: 48

約数和(自身を含む): 207981312

約数和(自身を除く): 142987572

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 154747, 309494, 464241, 618988, 773735, 928482, 1083229, 1547470, 1856964, 2166458, 2321205, 3094940, 3249687, 4332916, 4642410, 5416145, 6499374, 9284820, 10832290, 12998748, 16248435, 21664580, 32496870, 64993740]

約数ペア:

[(1, 64993740), (2, 32496870), (3, 21664580), (4, 16248435), (5, 12998748), (6, 10832290), (7, 9284820), (10, 6499374), (12, 5416145), (14, 4642410), (15, 4332916), (20, 3249687), (21, 3094940), (28, 2321205), (30, 2166458), (35, 1856964), (42, 1547470), (60, 1083229), (70, 928482), (84, 773735), (105, 618988), (140, 464241), (210, 309494), (420, 154747)]