2039960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3923}}^1$

素因数の和:3947

約数の個数: 32

約数和(自身を含む): 4944240

約数和(自身を除く): 2904280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 3923, 7846, 15692, 19615, 31384, 39230, 50999, 78460, 101998, 156920, 203996, 254995, 407992, 509990, 1019980, 2039960]

約数ペア:

[(1, 2039960), (2, 1019980), (4, 509990), (5, 407992), (8, 254995), (10, 203996), (13, 156920), (20, 101998), (26, 78460), (40, 50999), (52, 39230), (65, 31384), (104, 19615), (130, 15692), (260, 7846), (520, 3923)]