12577720

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{821}}^1$

素因数の和:1215

約数の個数: 32

約数和(自身を含む): 28408320

約数和(自身を除く): 15830600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 821, 1532, 1642, 1915, 3064, 3284, 3830, 4105, 6568, 7660, 8210, 15320, 16420, 32840, 314443, 628886, 1257772, 1572215, 2515544, 3144430, 6288860, 12577720]

約数ペア:

[(1, 12577720), (2, 6288860), (4, 3144430), (5, 2515544), (8, 1572215), (10, 1257772), (20, 628886), (40, 314443), (383, 32840), (766, 16420), (821, 15320), (1532, 8210), (1642, 7660), (1915, 6568), (3064, 4105), (3284, 3830)]