20209960

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{9533}}^1$

素因数の和:9597

約数の個数: 32

約数和(自身を含む): 46335240

約数和(自身を除く): 26125280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 9533, 19066, 38132, 47665, 76264, 95330, 190660, 381320, 505249, 1010498, 2020996, 2526245, 4041992, 5052490, 10104980, 20209960]

約数ペア:

[(1, 20209960), (2, 10104980), (4, 5052490), (5, 4041992), (8, 2526245), (10, 2020996), (20, 1010498), (40, 505249), (53, 381320), (106, 190660), (212, 95330), (265, 76264), (424, 47665), (530, 38132), (1060, 19066), (2120, 9533)]