138525980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{223429}}^1$

素因数の和:223469

約数の個数: 24

約数和(自身を含む): 300289920

約数和(自身を除く): 161763940

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 223429, 446858, 893716, 1117145, 2234290, 4468580, 6926299, 13852598, 27705196, 34631495, 69262990, 138525980]

約数ペア:

[(1, 138525980), (2, 69262990), (4, 34631495), (5, 27705196), (10, 13852598), (20, 6926299), (31, 4468580), (62, 2234290), (124, 1117145), (155, 893716), (310, 446858), (620, 223429)]