1257640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1367}}^1$

素因数の和:1401

約数の個数: 32

約数和(自身を含む): 2954880

約数和(自身を除く): 1697240

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 1367, 2734, 5468, 6835, 10936, 13670, 27340, 31441, 54680, 62882, 125764, 157205, 251528, 314410, 628820, 1257640]

約数ペア:

[(1, 1257640), (2, 628820), (4, 314410), (5, 251528), (8, 157205), (10, 125764), (20, 62882), (23, 54680), (40, 31441), (46, 27340), (92, 13670), (115, 10936), (184, 6835), (230, 5468), (460, 2734), (920, 1367)]