319203520

素因数分解:

$2^6\times 5^1\times {\mathrm{997511}}^1$

素因数の和:997528

約数の個数: 28

約数和(自身を含む): 760104144

約数和(自身を除く): 440900624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 997511, 1995022, 3990044, 4987555, 7980088, 9975110, 15960176, 19950220, 31920352, 39900440, 63840704, 79800880, 159601760, 319203520]

約数ペア:

[(1, 319203520), (2, 159601760), (4, 79800880), (5, 63840704), (8, 39900440), (10, 31920352), (16, 19950220), (20, 15960176), (32, 9975110), (40, 7980088), (64, 4987555), (80, 3990044), (160, 1995022), (320, 997511)]