66485720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{367}}^1\times {\mathrm{647}}^1$

素因数の和:1032

約数の個数: 64

約数和(自身を含む): 171694080

約数和(自身を除く): 105208360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 367, 647, 734, 1294, 1468, 1835, 2569, 2588, 2936, 3235, 3670, 4529, 5138, 5176, 6470, 7340, 9058, 10276, 12845, 12940, 14680, 18116, 20552, 22645, 25690, 25880, 36232, 45290, 51380, 90580, 102760, 181160, 237449, 474898, 949796, 1187245, 1662143, 1899592, 2374490, 3324286, 4748980, 6648572, 8310715, 9497960, 13297144, 16621430, 33242860, 66485720]

約数ペア:

[(1, 66485720), (2, 33242860), (4, 16621430), (5, 13297144), (7, 9497960), (8, 8310715), (10, 6648572), (14, 4748980), (20, 3324286), (28, 2374490), (35, 1899592), (40, 1662143), (56, 1187245), (70, 949796), (140, 474898), (280, 237449), (367, 181160), (647, 102760), (734, 90580), (1294, 51380), (1468, 45290), (1835, 36232), (2569, 25880), (2588, 25690), (2936, 22645), (3235, 20552), (3670, 18116), (4529, 14680), (5138, 12940), (5176, 12845), (6470, 10276), (7340, 9058)]