25959020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:362

約数の個数: 48

約数和(自身を含む): 56137536

約数和(自身を除く): 30178516

約数列:

[1, 2, 4, 5, 10, 20, 71, 101, 142, 181, 202, 284, 355, 362, 404, 505, 710, 724, 905, 1010, 1420, 1810, 2020, 3620, 7171, 12851, 14342, 18281, 25702, 28684, 35855, 36562, 51404, 64255, 71710, 73124, 91405, 128510, 143420, 182810, 257020, 365620, 1297951, 2595902, 5191804, 6489755, 12979510, 25959020]

約数ペア:

[(1, 25959020), (2, 12979510), (4, 6489755), (5, 5191804), (10, 2595902), (20, 1297951), (71, 365620), (101, 257020), (142, 182810), (181, 143420), (202, 128510), (284, 91405), (355, 73124), (362, 71710), (404, 64255), (505, 51404), (710, 36562), (724, 35855), (905, 28684), (1010, 25702), (1420, 18281), (1810, 14342), (2020, 12851), (3620, 7171)]