221048890

素因数分解:

$2^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{123491}}^1$

素因数の和:123677

約数の個数: 16

約数和(自身を含む): 400114080

約数和(自身を除く): 179065190

約数列:

[1, 2, 5, 10, 179, 358, 895, 1790, 123491, 246982, 617455, 1234910, 22104889, 44209778, 110524445, 221048890]

約数ペア:

[(1, 221048890), (2, 110524445), (5, 44209778), (10, 22104889), (179, 1234910), (358, 617455), (895, 246982), (1790, 123491)]