20162574220

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1121389}}^1$

素因数の和:1121458

約数の個数: 48

約数和(自身を含む): 45214444800

約数和(自身を除く): 25051870580

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 116, 124, 145, 155, 290, 310, 580, 620, 899, 1798, 3596, 4495, 8990, 17980, 1121389, 2242778, 4485556, 5606945, 11213890, 22427780, 32520281, 34763059, 65040562, 69526118, 130081124, 139052236, 162601405, 173815295, 325202810, 347630590, 650405620, 695261180, 1008128711, 2016257422, 4032514844, 5040643555, 10081287110, 20162574220]

約数ペア:

[(1, 20162574220), (2, 10081287110), (4, 5040643555), (5, 4032514844), (10, 2016257422), (20, 1008128711), (29, 695261180), (31, 650405620), (58, 347630590), (62, 325202810), (116, 173815295), (124, 162601405), (145, 139052236), (155, 130081124), (290, 69526118), (310, 65040562), (580, 34763059), (620, 32520281), (899, 22427780), (1798, 11213890), (3596, 5606945), (4495, 4485556), (8990, 2242778), (17980, 1121389)]