66638020

素因数分解:

$2^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{15791}}^1$

素因数の和:16011

約数の個数: 24

約数和(自身を含む): 140611968

約数和(自身を除く): 73973948

約数列:

[1, 2, 4, 5, 10, 20, 211, 422, 844, 1055, 2110, 4220, 15791, 31582, 63164, 78955, 157910, 315820, 3331901, 6663802, 13327604, 16659505, 33319010, 66638020]

約数ペア:

[(1, 66638020), (2, 33319010), (4, 16659505), (5, 13327604), (10, 6663802), (20, 3331901), (211, 315820), (422, 157910), (844, 78955), (1055, 63164), (2110, 31582), (4220, 15791)]