207040

素因数分解:

$2^6\times 5^1\times {\mathrm{647}}^1$

素因数の和:664

約数の個数: 28

約数和(自身を含む): 493776

約数和(自身を除く): 286736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 647, 1294, 2588, 3235, 5176, 6470, 10352, 12940, 20704, 25880, 41408, 51760, 103520, 207040]

約数ペア:

[(1, 207040), (2, 103520), (4, 51760), (5, 41408), (8, 25880), (10, 20704), (16, 12940), (20, 10352), (32, 6470), (40, 5176), (64, 3235), (80, 2588), (160, 1294), (320, 647)]