205704220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{331781}}^1$

素因数の和:331821

約数の個数: 24

約数和(自身を含む): 445915008

約数和(自身を除く): 240210788

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 331781, 663562, 1327124, 1658905, 3317810, 6635620, 10285211, 20570422, 41140844, 51426055, 102852110, 205704220]

約数ペア:

[(1, 205704220), (2, 102852110), (4, 51426055), (5, 41140844), (10, 20570422), (20, 10285211), (31, 6635620), (62, 3317810), (124, 1658905), (155, 1327124), (310, 663562), (620, 331781)]