207969320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{399941}}^1$

素因数の和:399965

約数の個数: 32

約数和(自身を含む): 503926920

約数和(自身を除く): 295957600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 399941, 799882, 1599764, 1999705, 3199528, 3999410, 5199233, 7998820, 10398466, 15997640, 20796932, 25996165, 41593864, 51992330, 103984660, 207969320]

約数ペア:

[(1, 207969320), (2, 103984660), (4, 51992330), (5, 41593864), (8, 25996165), (10, 20796932), (13, 15997640), (20, 10398466), (26, 7998820), (40, 5199233), (52, 3999410), (65, 3199528), (104, 1999705), (130, 1599764), (260, 799882), (520, 399941)]