638558180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{41627}}^1$

素因数の和:41708

約数の個数: 48

約数和(自身を含む): 1468635840

約数和(自身を除く): 830077660

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 59, 65, 118, 130, 236, 260, 295, 590, 767, 1180, 1534, 3068, 3835, 7670, 15340, 41627, 83254, 166508, 208135, 416270, 541151, 832540, 1082302, 2164604, 2455993, 2705755, 4911986, 5411510, 9823972, 10823020, 12279965, 24559930, 31927909, 49119860, 63855818, 127711636, 159639545, 319279090, 638558180]

約数ペア:

[(1, 638558180), (2, 319279090), (4, 159639545), (5, 127711636), (10, 63855818), (13, 49119860), (20, 31927909), (26, 24559930), (52, 12279965), (59, 10823020), (65, 9823972), (118, 5411510), (130, 4911986), (236, 2705755), (260, 2455993), (295, 2164604), (590, 1082302), (767, 832540), (1180, 541151), (1534, 416270), (3068, 208135), (3835, 166508), (7670, 83254), (15340, 41627)]