210870920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{405521}}^1$

素因数の和:405545

約数の個数: 32

約数和(自身を含む): 510957720

約数和(自身を除く): 300086800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 405521, 811042, 1622084, 2027605, 3244168, 4055210, 5271773, 8110420, 10543546, 16220840, 21087092, 26358865, 42174184, 52717730, 105435460, 210870920]

約数ペア:

[(1, 210870920), (2, 105435460), (4, 52717730), (5, 42174184), (8, 26358865), (10, 21087092), (13, 16220840), (20, 10543546), (26, 8110420), (40, 5271773), (52, 4055210), (65, 3244168), (104, 2027605), (130, 1622084), (260, 811042), (520, 405521)]