25252820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^3\times {\mathrm{257}}^1$

素因数の和:317

約数の個数: 48

約数和(自身を含む): 56563920

約数和(自身を除く): 31311100

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 257, 289, 340, 514, 578, 1028, 1156, 1285, 1445, 2570, 2890, 4369, 4913, 5140, 5780, 8738, 9826, 17476, 19652, 21845, 24565, 43690, 49130, 74273, 87380, 98260, 148546, 297092, 371365, 742730, 1262641, 1485460, 2525282, 5050564, 6313205, 12626410, 25252820]

約数ペア:

[(1, 25252820), (2, 12626410), (4, 6313205), (5, 5050564), (10, 2525282), (17, 1485460), (20, 1262641), (34, 742730), (68, 371365), (85, 297092), (170, 148546), (257, 98260), (289, 87380), (340, 74273), (514, 49130), (578, 43690), (1028, 24565), (1156, 21845), (1285, 19652), (1445, 17476), (2570, 9826), (2890, 8738), (4369, 5780), (4913, 5140)]