179970820

素因数分解:

$2^2\times 5^1\times {\mathrm{2239}}^1\times {\mathrm{4019}}^1$

素因数の和:6267

約数の個数: 24

約数和(自身を含む): 378201600

約数和(自身を除く): 198230780

約数列:

[1, 2, 4, 5, 10, 20, 2239, 4019, 4478, 8038, 8956, 11195, 16076, 20095, 22390, 40190, 44780, 80380, 8998541, 17997082, 35994164, 44992705, 89985410, 179970820]

約数ペア:

[(1, 179970820), (2, 89985410), (4, 44992705), (5, 35994164), (10, 17997082), (20, 8998541), (2239, 80380), (4019, 44780), (4478, 40190), (8038, 22390), (8956, 20095), (11195, 16076)]