8159840

素因数分解:

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

素因数の和:3951

約数の個数: 48

約数和(自身を含む): 20765808

約数和(自身を除く): 12605968

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 3923, 7846, 15692, 19615, 31384, 39230, 50999, 62768, 78460, 101998, 125536, 156920, 203996, 254995, 313840, 407992, 509990, 627680, 815984, 1019980, 1631968, 2039960, 4079920, 8159840]

約数ペア:

[(1, 8159840), (2, 4079920), (4, 2039960), (5, 1631968), (8, 1019980), (10, 815984), (13, 627680), (16, 509990), (20, 407992), (26, 313840), (32, 254995), (40, 203996), (52, 156920), (65, 125536), (80, 101998), (104, 78460), (130, 62768), (160, 50999), (208, 39230), (260, 31384), (416, 19615), (520, 15692), (1040, 7846), (2080, 3923)]