20656560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{86069}}^1$

素因数の和:86085

約数の個数: 40

約数和(自身を含む): 64036080

約数和(自身を除く): 43379520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 86069, 172138, 258207, 344276, 430345, 516414, 688552, 860690, 1032828, 1291035, 1377104, 1721380, 2065656, 2582070, 3442760, 4131312, 5164140, 6885520, 10328280, 20656560]

約数ペア:

[(1, 20656560), (2, 10328280), (3, 6885520), (4, 5164140), (5, 4131312), (6, 3442760), (8, 2582070), (10, 2065656), (12, 1721380), (15, 1377104), (16, 1291035), (20, 1032828), (24, 860690), (30, 688552), (40, 516414), (48, 430345), (60, 344276), (80, 258207), (120, 172138), (240, 86069)]