445579240

素因数分解:

$2^3\times 5^1\times {\mathrm{997}}^1\times {\mathrm{11173}}^1$

素因数の和:12181

約数の個数: 32

約数和(自身を含む): 1003648680

約数和(自身を除く): 558069440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 997, 1994, 3988, 4985, 7976, 9970, 11173, 19940, 22346, 39880, 44692, 55865, 89384, 111730, 223460, 446920, 11139481, 22278962, 44557924, 55697405, 89115848, 111394810, 222789620, 445579240]

約数ペア:

[(1, 445579240), (2, 222789620), (4, 111394810), (5, 89115848), (8, 55697405), (10, 44557924), (20, 22278962), (40, 11139481), (997, 446920), (1994, 223460), (3988, 111730), (4985, 89384), (7976, 55865), (9970, 44692), (11173, 39880), (19940, 22346)]