7912820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{37}}^2$

素因数の和:117

約数の個数: 54

約数和(自身を含む): 18141858

約数和(自身を除く): 10229038

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 68, 74, 85, 148, 170, 185, 289, 340, 370, 578, 629, 740, 1156, 1258, 1369, 1445, 2516, 2738, 2890, 3145, 5476, 5780, 6290, 6845, 10693, 12580, 13690, 21386, 23273, 27380, 42772, 46546, 53465, 93092, 106930, 116365, 213860, 232730, 395641, 465460, 791282, 1582564, 1978205, 3956410, 7912820]

約数ペア:

[(1, 7912820), (2, 3956410), (4, 1978205), (5, 1582564), (10, 791282), (17, 465460), (20, 395641), (34, 232730), (37, 213860), (68, 116365), (74, 106930), (85, 93092), (148, 53465), (170, 46546), (185, 42772), (289, 27380), (340, 23273), (370, 21386), (578, 13690), (629, 12580), (740, 10693), (1156, 6845), (1258, 6290), (1369, 5780), (1445, 5476), (2516, 3145), (2738, 2890)]