18331940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{809}}^1$

素因数の和:932

約数の個数: 48

約数和(自身を含む): 42456960

約数和(自身を除く): 24125020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 412, 515, 809, 1030, 1133, 1618, 2060, 2266, 3236, 4045, 4532, 5665, 8090, 8899, 11330, 16180, 17798, 22660, 35596, 44495, 83327, 88990, 166654, 177980, 333308, 416635, 833270, 916597, 1666540, 1833194, 3666388, 4582985, 9165970, 18331940]

約数ペア:

[(1, 18331940), (2, 9165970), (4, 4582985), (5, 3666388), (10, 1833194), (11, 1666540), (20, 916597), (22, 833270), (44, 416635), (55, 333308), (103, 177980), (110, 166654), (206, 88990), (220, 83327), (412, 44495), (515, 35596), (809, 22660), (1030, 17798), (1133, 16180), (1618, 11330), (2060, 8899), (2266, 8090), (3236, 5665), (4045, 4532)]