64995760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47791}}^1$

素因数の和:47821

約数の個数: 40

約数和(自身を含む): 160007616

約数和(自身を除く): 95011856

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 47791, 95582, 191164, 238955, 382328, 477910, 764656, 812447, 955820, 1624894, 1911640, 3249788, 3823280, 4062235, 6499576, 8124470, 12999152, 16248940, 32497880, 64995760]

約数ペア:

[(1, 64995760), (2, 32497880), (4, 16248940), (5, 12999152), (8, 8124470), (10, 6499576), (16, 4062235), (17, 3823280), (20, 3249788), (34, 1911640), (40, 1624894), (68, 955820), (80, 812447), (85, 764656), (136, 477910), (170, 382328), (272, 238955), (340, 191164), (680, 95582), (1360, 47791)]