13129340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{191}}^1\times {\mathrm{491}}^1$

素因数の和:698

約数の個数: 48

約数和(自身を含む): 31739904

約数和(自身を除く): 18610564

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 191, 382, 491, 764, 955, 982, 1337, 1910, 1964, 2455, 2674, 3437, 3820, 4910, 5348, 6685, 6874, 9820, 13370, 13748, 17185, 26740, 34370, 68740, 93781, 187562, 375124, 468905, 656467, 937810, 1312934, 1875620, 2625868, 3282335, 6564670, 13129340]

約数ペア:

[(1, 13129340), (2, 6564670), (4, 3282335), (5, 2625868), (7, 1875620), (10, 1312934), (14, 937810), (20, 656467), (28, 468905), (35, 375124), (70, 187562), (140, 93781), (191, 68740), (382, 34370), (491, 26740), (764, 17185), (955, 13748), (982, 13370), (1337, 9820), (1910, 6874), (1964, 6685), (2455, 5348), (2674, 4910), (3437, 3820)]