13439920

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{12923}}^1$

素因数の和:12949

約数の個数: 40

約数和(自身を含む): 33654096

約数和(自身を除く): 20214176

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 12923, 25846, 51692, 64615, 103384, 129230, 167999, 206768, 258460, 335998, 516920, 671996, 839995, 1033840, 1343992, 1679990, 2687984, 3359980, 6719960, 13439920]

約数ペア:

[(1, 13439920), (2, 6719960), (4, 3359980), (5, 2687984), (8, 1679990), (10, 1343992), (13, 1033840), (16, 839995), (20, 671996), (26, 516920), (40, 335998), (52, 258460), (65, 206768), (80, 167999), (104, 129230), (130, 103384), (208, 64615), (260, 51692), (520, 25846), (1040, 12923)]