18248680

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4517}}^1$

素因数の和:4629

約数の個数: 32

約数和(自身を含む): 41475240

約数和(自身を除く): 23226560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 4517, 9034, 18068, 22585, 36136, 45170, 90340, 180680, 456217, 912434, 1824868, 2281085, 3649736, 4562170, 9124340, 18248680]

約数ペア:

[(1, 18248680), (2, 9124340), (4, 4562170), (5, 3649736), (8, 2281085), (10, 1824868), (20, 912434), (40, 456217), (101, 180680), (202, 90340), (404, 45170), (505, 36136), (808, 22585), (1010, 18068), (2020, 9034), (4040, 4517)]