42021940

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{20399}}^1$

素因数の和:20511

約数の個数: 24

約数和(自身を含む): 89107200

約数和(自身を除く): 47085260

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 20399, 40798, 81596, 101995, 203990, 407980, 2101097, 4202194, 8404388, 10505485, 21010970, 42021940]

約数ペア:

[(1, 42021940), (2, 21010970), (4, 10505485), (5, 8404388), (10, 4202194), (20, 2101097), (103, 407980), (206, 203990), (412, 101995), (515, 81596), (1030, 40798), (2060, 20399)]