20201680

素因数分解:

$2^4\times 5^1\times {\mathrm{373}}^1\times {\mathrm{677}}^1$

素因数の和:1063

約数の個数: 40

約数和(自身を含む): 47164392

約数和(自身を除く): 26962712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 373, 677, 746, 1354, 1492, 1865, 2708, 2984, 3385, 3730, 5416, 5968, 6770, 7460, 10832, 13540, 14920, 27080, 29840, 54160, 252521, 505042, 1010084, 1262605, 2020168, 2525210, 4040336, 5050420, 10100840, 20201680]

約数ペア:

[(1, 20201680), (2, 10100840), (4, 5050420), (5, 4040336), (8, 2525210), (10, 2020168), (16, 1262605), (20, 1010084), (40, 505042), (80, 252521), (373, 54160), (677, 29840), (746, 27080), (1354, 14920), (1492, 13540), (1865, 10832), (2708, 7460), (2984, 6770), (3385, 5968), (3730, 5416)]