80404820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{138629}}^1$

素因数の和:138667

約数の個数: 24

約数和(自身を含む): 174673800

約数和(自身を除く): 94268980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 138629, 277258, 554516, 693145, 1386290, 2772580, 4020241, 8040482, 16080964, 20101205, 40202410, 80404820]

約数ペア:

[(1, 80404820), (2, 40202410), (4, 20101205), (5, 16080964), (10, 8040482), (20, 4020241), (29, 2772580), (58, 1386290), (116, 693145), (145, 554516), (290, 277258), (580, 138629)]