15887720

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{5441}}^1$

素因数の和:5525

約数の個数: 32

約数和(自身を含む): 36243720

約数和(自身を除く): 20356000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 5441, 10882, 21764, 27205, 43528, 54410, 108820, 217640, 397193, 794386, 1588772, 1985965, 3177544, 3971930, 7943860, 15887720]

約数ペア:

[(1, 15887720), (2, 7943860), (4, 3971930), (5, 3177544), (8, 1985965), (10, 1588772), (20, 794386), (40, 397193), (73, 217640), (146, 108820), (292, 54410), (365, 43528), (584, 27205), (730, 21764), (1460, 10882), (2920, 5441)]