398627720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{433291}}^1$

素因数の和:433325

約数の個数: 32

約数和(自身を含む): 935910720

約数和(自身を除く): 537283000

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 433291, 866582, 1733164, 2166455, 3466328, 4332910, 8665820, 9965693, 17331640, 19931386, 39862772, 49828465, 79725544, 99656930, 199313860, 398627720]

約数ペア:

[(1, 398627720), (2, 199313860), (4, 99656930), (5, 79725544), (8, 49828465), (10, 39862772), (20, 19931386), (23, 17331640), (40, 9965693), (46, 8665820), (92, 4332910), (115, 3466328), (184, 2166455), (230, 1733164), (460, 866582), (920, 433291)]