12905740

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{5081}}^1$

素因数の和:5217

約数の個数: 24

約数和(自身を含む): 27320832

約数和(自身を除く): 14415092

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 5081, 10162, 20324, 25405, 50810, 101620, 645287, 1290574, 2581148, 3226435, 6452870, 12905740]

約数ペア:

[(1, 12905740), (2, 6452870), (4, 3226435), (5, 2581148), (10, 1290574), (20, 645287), (127, 101620), (254, 50810), (508, 25405), (635, 20324), (1270, 10162), (2540, 5081)]