42780740

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{19991}}^1$

素因数の和:20107

約数の個数: 24

約数和(自身を含む): 90683712

約数和(自身を除く): 47902972

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 19991, 39982, 79964, 99955, 199910, 399820, 2139037, 4278074, 8556148, 10695185, 21390370, 42780740]

約数ペア:

[(1, 42780740), (2, 21390370), (4, 10695185), (5, 8556148), (10, 4278074), (20, 2139037), (107, 399820), (214, 199910), (428, 99955), (535, 79964), (1070, 39982), (2140, 19991)]