20388700

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{6577}}^1$

素因数の和:6622

約数の個数: 36

約数和(自身を含む): 45677632

約数和(自身を除く): 25288932

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 6577, 13154, 26308, 32885, 65770, 131540, 164425, 203887, 328850, 407774, 657700, 815548, 1019435, 2038870, 4077740, 5097175, 10194350, 20388700]

約数ペア:

[(1, 20388700), (2, 10194350), (4, 5097175), (5, 4077740), (10, 2038870), (20, 1019435), (25, 815548), (31, 657700), (50, 407774), (62, 328850), (100, 203887), (124, 164425), (155, 131540), (310, 65770), (620, 32885), (775, 26308), (1550, 13154), (3100, 6577)]