89487640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{203381}}^1$

素因数の和:203403

約数の個数: 32

約数和(自身を含む): 219652560

約数和(自身を除く): 130164920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 203381, 406762, 813524, 1016905, 1627048, 2033810, 2237191, 4067620, 4474382, 8135240, 8948764, 11185955, 17897528, 22371910, 44743820, 89487640]

約数ペア:

[(1, 89487640), (2, 44743820), (4, 22371910), (5, 17897528), (8, 11185955), (10, 8948764), (11, 8135240), (20, 4474382), (22, 4067620), (40, 2237191), (44, 2033810), (55, 1627048), (88, 1016905), (110, 813524), (220, 406762), (440, 203381)]