1307820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{307}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 3725568

約数和(自身を除く): 2417748

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 307, 355, 426, 614, 710, 852, 921, 1065, 1228, 1420, 1535, 1842, 2130, 3070, 3684, 4260, 4605, 6140, 9210, 18420, 21797, 43594, 65391, 87188, 108985, 130782, 217970, 261564, 326955, 435940, 653910, 1307820]

約数ペア:

[(1, 1307820), (2, 653910), (3, 435940), (4, 326955), (5, 261564), (6, 217970), (10, 130782), (12, 108985), (15, 87188), (20, 65391), (30, 43594), (60, 21797), (71, 18420), (142, 9210), (213, 6140), (284, 4605), (307, 4260), (355, 3684), (426, 3070), (614, 2130), (710, 1842), (852, 1535), (921, 1420), (1065, 1228)]