12666220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{90473}}^1$

素因数の和:90489

約数の個数: 24

約数和(自身を含む): 30399264

約数和(自身を除く): 17733044

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 90473, 180946, 361892, 452365, 633311, 904730, 1266622, 1809460, 2533244, 3166555, 6333110, 12666220]

約数ペア:

[(1, 12666220), (2, 6333110), (4, 3166555), (5, 2533244), (7, 1809460), (10, 1266622), (14, 904730), (20, 633311), (28, 452365), (35, 361892), (70, 180946), (140, 90473)]