65980760

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{31123}}^1$

素因数の和:31187

約数の個数: 32

約数和(自身を含む): 151262640

約数和(自身を除く): 85281880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 31123, 62246, 124492, 155615, 248984, 311230, 622460, 1244920, 1649519, 3299038, 6598076, 8247595, 13196152, 16495190, 32990380, 65980760]

約数ペア:

[(1, 65980760), (2, 32990380), (4, 16495190), (5, 13196152), (8, 8247595), (10, 6598076), (20, 3299038), (40, 1649519), (53, 1244920), (106, 622460), (212, 311230), (265, 248984), (424, 155615), (530, 124492), (1060, 62246), (2120, 31123)]