257723740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{32957}}^1$

素因数の和:33006

約数の個数: 48

約数和(自身を含む): 597989952

約数和(自身を除く): 340266212

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 3910, 7820, 32957, 65914, 131828, 164785, 329570, 560269, 659140, 758011, 1120538, 1516022, 2241076, 2801345, 3032044, 3790055, 5602690, 7580110, 11205380, 12886187, 15160220, 25772374, 51544748, 64430935, 128861870, 257723740]

約数ペア:

[(1, 257723740), (2, 128861870), (4, 64430935), (5, 51544748), (10, 25772374), (17, 15160220), (20, 12886187), (23, 11205380), (34, 7580110), (46, 5602690), (68, 3790055), (85, 3032044), (92, 2801345), (115, 2241076), (170, 1516022), (230, 1120538), (340, 758011), (391, 659140), (460, 560269), (782, 329570), (1564, 164785), (1955, 131828), (3910, 65914), (7820, 32957)]