64208920

素因数分解:

$2^3\times 5^1\times {\mathrm{1217}}^1\times {\mathrm{1319}}^1$

素因数の和:2547

約数の個数: 32

約数和(自身を含む): 144698400

約数和(自身を除く): 80489480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1217, 1319, 2434, 2638, 4868, 5276, 6085, 6595, 9736, 10552, 12170, 13190, 24340, 26380, 48680, 52760, 1605223, 3210446, 6420892, 8026115, 12841784, 16052230, 32104460, 64208920]

約数ペア:

[(1, 64208920), (2, 32104460), (4, 16052230), (5, 12841784), (8, 8026115), (10, 6420892), (20, 3210446), (40, 1605223), (1217, 52760), (1319, 48680), (2434, 26380), (2638, 24340), (4868, 13190), (5276, 12170), (6085, 10552), (6595, 9736)]