28153520

素因数分解:

$2^4\times 5^1\times {\mathrm{351919}}^1$

素因数の和:351932

約数の個数: 20

約数和(自身を含む): 65457120

約数和(自身を除く): 37303600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 351919, 703838, 1407676, 1759595, 2815352, 3519190, 5630704, 7038380, 14076760, 28153520]

約数ペア:

[(1, 28153520), (2, 14076760), (4, 7038380), (5, 5630704), (8, 3519190), (10, 2815352), (16, 1759595), (20, 1407676), (40, 703838), (80, 351919)]