12670640

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3863}}^1$

素因数の和:3917

約数の個数: 40

約数和(自身を含む): 30185568

約数和(自身を除く): 17514928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 3863, 7726, 15452, 19315, 30904, 38630, 61808, 77260, 154520, 158383, 309040, 316766, 633532, 791915, 1267064, 1583830, 2534128, 3167660, 6335320, 12670640]

約数ペア:

[(1, 12670640), (2, 6335320), (4, 3167660), (5, 2534128), (8, 1583830), (10, 1267064), (16, 791915), (20, 633532), (40, 316766), (41, 309040), (80, 158383), (82, 154520), (164, 77260), (205, 61808), (328, 38630), (410, 30904), (656, 19315), (820, 15452), (1640, 7726), (3280, 3863)]