25392140

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{7789}}^1$

素因数の和:7961

約数の個数: 24

約数和(自身を含む): 53657520

約数和(自身を除く): 28265380

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 7789, 15578, 31156, 38945, 77890, 155780, 1269607, 2539214, 5078428, 6348035, 12696070, 25392140]

約数ペア:

[(1, 25392140), (2, 12696070), (4, 6348035), (5, 5078428), (10, 2539214), (20, 1269607), (163, 155780), (326, 77890), (652, 38945), (815, 31156), (1630, 15578), (3260, 7789)]