20131620625

素因数分解:

$5^4\times {\mathrm{73}}^1\times {\mathrm{163}}^1\times {\mathrm{2707}}^1$

素因数の和:2963

約数の個数: 40

約数和(自身を含む): 25667008928

約数和(自身を除く): 5535388303

約数列:

[1, 5, 25, 73, 125, 163, 365, 625, 815, 1825, 2707, 4075, 9125, 11899, 13535, 20375, 45625, 59495, 67675, 101875, 197611, 297475, 338375, 441241, 988055, 1487375, 1691875, 2206205, 4940275, 7436875, 11031025, 24701375, 32210593, 55155125, 123506875, 161052965, 275775625, 805264825, 4026324125, 20131620625]

約数ペア:

[(1, 20131620625), (5, 4026324125), (25, 805264825), (73, 275775625), (125, 161052965), (163, 123506875), (365, 55155125), (625, 32210593), (815, 24701375), (1825, 11031025), (2707, 7436875), (4075, 4940275), (9125, 2206205), (11899, 1691875), (13535, 1487375), (20375, 988055), (45625, 441241), (59495, 338375), (67675, 297475), (101875, 197611)]