15825640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^2\times {\mathrm{37}}^2$

素因数の和:119

約数の個数: 72

約数和(自身を含む): 38875410

約数和(自身を除く): 23049770

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 37, 40, 68, 74, 85, 136, 148, 170, 185, 289, 296, 340, 370, 578, 629, 680, 740, 1156, 1258, 1369, 1445, 1480, 2312, 2516, 2738, 2890, 3145, 5032, 5476, 5780, 6290, 6845, 10693, 10952, 11560, 12580, 13690, 21386, 23273, 25160, 27380, 42772, 46546, 53465, 54760, 85544, 93092, 106930, 116365, 186184, 213860, 232730, 395641, 427720, 465460, 791282, 930920, 1582564, 1978205, 3165128, 3956410, 7912820, 15825640]

約数ペア:

[(1, 15825640), (2, 7912820), (4, 3956410), (5, 3165128), (8, 1978205), (10, 1582564), (17, 930920), (20, 791282), (34, 465460), (37, 427720), (40, 395641), (68, 232730), (74, 213860), (85, 186184), (136, 116365), (148, 106930), (170, 93092), (185, 85544), (289, 54760), (296, 53465), (340, 46546), (370, 42772), (578, 27380), (629, 25160), (680, 23273), (740, 21386), (1156, 13690), (1258, 12580), (1369, 11560), (1445, 10952), (1480, 10693), (2312, 6845), (2516, 6290), (2738, 5780), (2890, 5476), (3145, 5032)]