64531640

素因数分解:

$2^3\times 5^1\times {\mathrm{677}}^1\times {\mathrm{2383}}^1$

素因数の和:3071

約数の個数: 32

約数和(自身を含む): 145471680

約数和(自身を除く): 80940040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 677, 1354, 2383, 2708, 3385, 4766, 5416, 6770, 9532, 11915, 13540, 19064, 23830, 27080, 47660, 95320, 1613291, 3226582, 6453164, 8066455, 12906328, 16132910, 32265820, 64531640]

約数ペア:

[(1, 64531640), (2, 32265820), (4, 16132910), (5, 12906328), (8, 8066455), (10, 6453164), (20, 3226582), (40, 1613291), (677, 95320), (1354, 47660), (2383, 27080), (2708, 23830), (3385, 19064), (4766, 13540), (5416, 11915), (6770, 9532)]