66738620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{256687}}^1$

素因数の和:256709

約数の個数: 24

約数和(自身を含む): 150932544

約数和(自身を除く): 84193924

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 256687, 513374, 1026748, 1283435, 2566870, 3336931, 5133740, 6673862, 13347724, 16684655, 33369310, 66738620]

約数ペア:

[(1, 66738620), (2, 33369310), (4, 16684655), (5, 13347724), (10, 6673862), (13, 5133740), (20, 3336931), (26, 2566870), (52, 1283435), (65, 1026748), (130, 513374), (260, 256687)]