12680780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{1709}}^1$

素因数の和:1778

約数の個数: 48

約数和(自身を含む): 31026240

約数和(自身を除く): 18345460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 53, 70, 106, 140, 212, 265, 371, 530, 742, 1060, 1484, 1709, 1855, 3418, 3710, 6836, 7420, 8545, 11963, 17090, 23926, 34180, 47852, 59815, 90577, 119630, 181154, 239260, 362308, 452885, 634039, 905770, 1268078, 1811540, 2536156, 3170195, 6340390, 12680780]

約数ペア:

[(1, 12680780), (2, 6340390), (4, 3170195), (5, 2536156), (7, 1811540), (10, 1268078), (14, 905770), (20, 634039), (28, 452885), (35, 362308), (53, 239260), (70, 181154), (106, 119630), (140, 90577), (212, 59815), (265, 47852), (371, 34180), (530, 23926), (742, 17090), (1060, 11963), (1484, 8545), (1709, 7420), (1855, 6836), (3418, 3710)]