12760820

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 27760320

約数和(自身を除く): 14999500

約数列:

[1, 2, 4, 5, 10, 20, 67, 89, 107, 134, 178, 214, 268, 335, 356, 428, 445, 535, 670, 890, 1070, 1340, 1780, 2140, 5963, 7169, 9523, 11926, 14338, 19046, 23852, 28676, 29815, 35845, 38092, 47615, 59630, 71690, 95230, 119260, 143380, 190460, 638041, 1276082, 2552164, 3190205, 6380410, 12760820]

約数ペア:

[(1, 12760820), (2, 6380410), (4, 3190205), (5, 2552164), (10, 1276082), (20, 638041), (67, 190460), (89, 143380), (107, 119260), (134, 95230), (178, 71690), (214, 59630), (268, 47615), (335, 38092), (356, 35845), (428, 29815), (445, 28676), (535, 23852), (670, 19046), (890, 14338), (1070, 11926), (1340, 9523), (1780, 7169), (2140, 5963)]