80706140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{13963}}^1$

素因数の和:14006

約数の個数: 36

約数和(自身を含む): 180051816

約数和(自身を除く): 99345676

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 5780, 13963, 27926, 55852, 69815, 139630, 237371, 279260, 474742, 949484, 1186855, 2373710, 4035307, 4747420, 8070614, 16141228, 20176535, 40353070, 80706140]

約数ペア:

[(1, 80706140), (2, 40353070), (4, 20176535), (5, 16141228), (10, 8070614), (17, 4747420), (20, 4035307), (34, 2373710), (68, 1186855), (85, 949484), (170, 474742), (289, 279260), (340, 237371), (578, 139630), (1156, 69815), (1445, 55852), (2890, 27926), (5780, 13963)]