489320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{941}}^1$

素因数の和:965

約数の個数: 32

約数和(自身を含む): 1186920

約数和(自身を除く): 697600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 941, 1882, 3764, 4705, 7528, 9410, 12233, 18820, 24466, 37640, 48932, 61165, 97864, 122330, 244660, 489320]

約数ペア:

[(1, 489320), (2, 244660), (4, 122330), (5, 97864), (8, 61165), (10, 48932), (13, 37640), (20, 24466), (26, 18820), (40, 12233), (52, 9410), (65, 7528), (104, 4705), (130, 3764), (260, 1882), (520, 941)]