650840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:371

約数の個数: 32

約数和(自身を含む): 1496880

約数和(自身を除く): 846040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 307, 424, 530, 614, 1060, 1228, 1535, 2120, 2456, 3070, 6140, 12280, 16271, 32542, 65084, 81355, 130168, 162710, 325420, 650840]

約数ペア:

[(1, 650840), (2, 325420), (4, 162710), (5, 130168), (8, 81355), (10, 65084), (20, 32542), (40, 16271), (53, 12280), (106, 6140), (212, 3070), (265, 2456), (307, 2120), (424, 1535), (530, 1228), (614, 1060)]