25561640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49157}}^1$

素因数の和:49181

約数の個数: 32

約数和(自身を含む): 61939080

約数和(自身を除く): 36377440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 49157, 98314, 196628, 245785, 393256, 491570, 639041, 983140, 1278082, 1966280, 2556164, 3195205, 5112328, 6390410, 12780820, 25561640]

約数ペア:

[(1, 25561640), (2, 12780820), (4, 6390410), (5, 5112328), (8, 3195205), (10, 2556164), (13, 1966280), (20, 1278082), (26, 983140), (40, 639041), (52, 491570), (65, 393256), (104, 245785), (130, 196628), (260, 98314), (520, 49157)]