25600420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{263}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 56060928

約数和(自身を除く): 30460508

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 157, 263, 310, 314, 526, 620, 628, 785, 1052, 1315, 1570, 2630, 3140, 4867, 5260, 8153, 9734, 16306, 19468, 24335, 32612, 40765, 41291, 48670, 81530, 82582, 97340, 163060, 165164, 206455, 412910, 825820, 1280021, 2560042, 5120084, 6400105, 12800210, 25600420]

約数ペア:

[(1, 25600420), (2, 12800210), (4, 6400105), (5, 5120084), (10, 2560042), (20, 1280021), (31, 825820), (62, 412910), (124, 206455), (155, 165164), (157, 163060), (263, 97340), (310, 82582), (314, 81530), (526, 48670), (620, 41291), (628, 40765), (785, 32612), (1052, 24335), (1315, 19468), (1570, 16306), (2630, 9734), (3140, 8153), (4867, 5260)]