658860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 1881600

約数和(自身を除く): 1222740

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 139, 158, 237, 278, 316, 395, 417, 474, 556, 695, 790, 834, 948, 1185, 1390, 1580, 1668, 2085, 2370, 2780, 4170, 4740, 8340, 10981, 21962, 32943, 43924, 54905, 65886, 109810, 131772, 164715, 219620, 329430, 658860]

約数ペア:

[(1, 658860), (2, 329430), (3, 219620), (4, 164715), (5, 131772), (6, 109810), (10, 65886), (12, 54905), (15, 43924), (20, 32943), (30, 21962), (60, 10981), (79, 8340), (139, 4740), (158, 4170), (237, 2780), (278, 2370), (316, 2085), (395, 1668), (417, 1580), (474, 1390), (556, 1185), (695, 948), (790, 834)]