12687980

素因数分解:

$2^2\times 5^1\times {\mathrm{523}}^1\times {\mathrm{1213}}^1$

素因数の和:1745

約数の個数: 24

約数和(自身を含む): 26717712

約数和(自身を除く): 14029732

約数列:

[1, 2, 4, 5, 10, 20, 523, 1046, 1213, 2092, 2426, 2615, 4852, 5230, 6065, 10460, 12130, 24260, 634399, 1268798, 2537596, 3171995, 6343990, 12687980]

約数ペア:

[(1, 12687980), (2, 6343990), (4, 3171995), (5, 2537596), (10, 1268798), (20, 634399), (523, 24260), (1046, 12130), (1213, 10460), (2092, 6065), (2426, 5230), (2615, 4852)]