204018620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{784687}}^1$

素因数の和:784709

約数の個数: 24

約数和(自身を含む): 461396544

約数和(自身を除く): 257377924

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 784687, 1569374, 3138748, 3923435, 7846870, 10200931, 15693740, 20401862, 40803724, 51004655, 102009310, 204018620]

約数ペア:

[(1, 204018620), (2, 102009310), (4, 51004655), (5, 40803724), (10, 20401862), (13, 15693740), (20, 10200931), (26, 7846870), (52, 3923435), (65, 3138748), (130, 1569374), (260, 784687)]