820630225

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{887}}^1\times {\mathrm{1609}}^1$

素因数の和:2529

約数の個数: 24

約数和(自身を含む): 1063681920

約数和(自身を除く): 243051695

約数列:

[1, 5, 23, 25, 115, 575, 887, 1609, 4435, 8045, 20401, 22175, 37007, 40225, 102005, 185035, 510025, 925175, 1427183, 7135915, 32825209, 35679575, 164126045, 820630225]

約数ペア:

[(1, 820630225), (5, 164126045), (23, 35679575), (25, 32825209), (115, 7135915), (575, 1427183), (887, 925175), (1609, 510025), (4435, 185035), (8045, 102005), (20401, 40225), (22175, 37007)]