20420784

素因数分解:

$2^4\times 3^2\times {\mathrm{141811}}^1$

素因数の和:141825

約数の個数: 30

約数和(自身を含む): 57150236

約数和(自身を除く): 36729452

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 141811, 283622, 425433, 567244, 850866, 1134488, 1276299, 1701732, 2268976, 2552598, 3403464, 5105196, 6806928, 10210392, 20420784]

約数ペア:

[(1, 20420784), (2, 10210392), (3, 6806928), (4, 5105196), (6, 3403464), (8, 2552598), (9, 2268976), (12, 1701732), (16, 1276299), (18, 1134488), (24, 850866), (36, 567244), (48, 425433), (72, 283622), (144, 141811)]