129360640

素因数分解:

$2^8\times 5^1\times {\mathrm{101063}}^1$

素因数の和:101084

約数の個数: 36

約数和(自身を含む): 309862224

約数和(自身を除く): 180501584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 101063, 202126, 404252, 505315, 808504, 1010630, 1617008, 2021260, 3234016, 4042520, 6468032, 8085040, 12936064, 16170080, 25872128, 32340160, 64680320, 129360640]

約数ペア:

[(1, 129360640), (2, 64680320), (4, 32340160), (5, 25872128), (8, 16170080), (10, 12936064), (16, 8085040), (20, 6468032), (32, 4042520), (40, 3234016), (64, 2021260), (80, 1617008), (128, 1010630), (160, 808504), (256, 505315), (320, 404252), (640, 202126), (1280, 101063)]