125978140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{1123}}^1$

素因数の和:1282

約数の個数: 48

約数和(自身を含む): 271918080

約数和(自身を除く): 145939940

約数列:

[1, 2, 4, 5, 10, 20, 71, 79, 142, 158, 284, 316, 355, 395, 710, 790, 1123, 1420, 1580, 2246, 4492, 5609, 5615, 11218, 11230, 22436, 22460, 28045, 56090, 79733, 88717, 112180, 159466, 177434, 318932, 354868, 398665, 443585, 797330, 887170, 1594660, 1774340, 6298907, 12597814, 25195628, 31494535, 62989070, 125978140]

約数ペア:

[(1, 125978140), (2, 62989070), (4, 31494535), (5, 25195628), (10, 12597814), (20, 6298907), (71, 1774340), (79, 1594660), (142, 887170), (158, 797330), (284, 443585), (316, 398665), (355, 354868), (395, 318932), (710, 177434), (790, 159466), (1123, 112180), (1420, 88717), (1580, 79733), (2246, 56090), (4492, 28045), (5609, 22460), (5615, 22436), (11218, 11230)]