25193680

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{7681}}^1$

素因数の和:7735

約数の個数: 40

約数和(自身を含む): 60011784

約数和(自身を除く): 34818104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 7681, 15362, 30724, 38405, 61448, 76810, 122896, 153620, 307240, 314921, 614480, 629842, 1259684, 1574605, 2519368, 3149210, 5038736, 6298420, 12596840, 25193680]

約数ペア:

[(1, 25193680), (2, 12596840), (4, 6298420), (5, 5038736), (8, 3149210), (10, 2519368), (16, 1574605), (20, 1259684), (40, 629842), (41, 614480), (80, 314921), (82, 307240), (164, 153620), (205, 122896), (328, 76810), (410, 61448), (656, 38405), (820, 30724), (1640, 15362), (3280, 7681)]