18787590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1049}}^1$

素因数の和:1261

約数の個数: 48

約数和(自身を含む): 49140000

約数和(自身を除く): 30352410

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 199, 398, 597, 995, 1049, 1194, 1791, 1990, 2098, 2985, 3147, 3582, 5245, 5970, 6294, 8955, 9441, 10490, 15735, 17910, 18882, 31470, 47205, 94410, 208751, 417502, 626253, 1043755, 1252506, 1878759, 2087510, 3131265, 3757518, 6262530, 9393795, 18787590]

約数ペア:

[(1, 18787590), (2, 9393795), (3, 6262530), (5, 3757518), (6, 3131265), (9, 2087510), (10, 1878759), (15, 1252506), (18, 1043755), (30, 626253), (45, 417502), (90, 208751), (199, 94410), (398, 47205), (597, 31470), (995, 18882), (1049, 17910), (1194, 15735), (1791, 10490), (1990, 9441), (2098, 8955), (2985, 6294), (3147, 5970), (3582, 5245)]