12659980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15439}}^1$

素因数の和:15489

約数の個数: 24

約数和(自身を含む): 27236160

約数和(自身を除く): 14576180

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 15439, 30878, 61756, 77195, 154390, 308780, 632999, 1265998, 2531996, 3164995, 6329990, 12659980]

約数ペア:

[(1, 12659980), (2, 6329990), (4, 3164995), (5, 2531996), (10, 1265998), (20, 632999), (41, 308780), (82, 154390), (164, 77195), (205, 61756), (410, 30878), (820, 15439)]