12756740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{331}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 28111104

約数和(自身を除く): 15354364

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 205, 235, 331, 410, 470, 662, 820, 940, 1324, 1655, 1927, 3310, 3854, 6620, 7708, 9635, 13571, 15557, 19270, 27142, 31114, 38540, 54284, 62228, 67855, 77785, 135710, 155570, 271420, 311140, 637837, 1275674, 2551348, 3189185, 6378370, 12756740]

約数ペア:

[(1, 12756740), (2, 6378370), (4, 3189185), (5, 2551348), (10, 1275674), (20, 637837), (41, 311140), (47, 271420), (82, 155570), (94, 135710), (164, 77785), (188, 67855), (205, 62228), (235, 54284), (331, 38540), (410, 31114), (470, 27142), (662, 19270), (820, 15557), (940, 13571), (1324, 9635), (1655, 7708), (1927, 6620), (3310, 3854)]