747820

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{269}}^1$

素因数の和:417

約数の個数: 24

約数和(自身を含む): 1587600

約数和(自身を除く): 839780

約数列:

[1, 2, 4, 5, 10, 20, 139, 269, 278, 538, 556, 695, 1076, 1345, 1390, 2690, 2780, 5380, 37391, 74782, 149564, 186955, 373910, 747820]

約数ペア:

[(1, 747820), (2, 373910), (4, 186955), (5, 149564), (10, 74782), (20, 37391), (139, 5380), (269, 2780), (278, 2690), (538, 1390), (556, 1345), (695, 1076)]