389740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1499}}^1$

素因数の和:1521

約数の個数: 24

約数和(自身を含む): 882000

約数和(自身を除く): 492260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1499, 2998, 5996, 7495, 14990, 19487, 29980, 38974, 77948, 97435, 194870, 389740]

約数ペア:

[(1, 389740), (2, 194870), (4, 97435), (5, 77948), (10, 38974), (13, 29980), (20, 19487), (26, 14990), (52, 7495), (65, 5996), (130, 2998), (260, 1499)]