20996858680

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{10712683}}^1$

素因数の和:10712708

約数の個数: 48

約数和(自身を含む): 54956068920

約数和(自身を除く): 33959210240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 10712683, 21425366, 42850732, 53563415, 74988781, 85701464, 107126830, 149977562, 214253660, 299955124, 374943905, 428507320, 524921467, 599910248, 749887810, 1049842934, 1499775620, 2099685868, 2624607335, 2999551240, 4199371736, 5249214670, 10498429340, 20996858680]

約数ペア:

[(1, 20996858680), (2, 10498429340), (4, 5249214670), (5, 4199371736), (7, 2999551240), (8, 2624607335), (10, 2099685868), (14, 1499775620), (20, 1049842934), (28, 749887810), (35, 599910248), (40, 524921467), (49, 428507320), (56, 374943905), (70, 299955124), (98, 214253660), (140, 149977562), (196, 107126830), (245, 85701464), (280, 74988781), (392, 53563415), (490, 42850732), (980, 21425366), (1960, 10712683)]