28980820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131731}}^1$

素因数の和:131751

約数の個数: 24

約数和(自身を含む): 66392928

約数和(自身を除く): 37412108

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 131731, 263462, 526924, 658655, 1317310, 1449041, 2634620, 2898082, 5796164, 7245205, 14490410, 28980820]

約数ペア:

[(1, 28980820), (2, 14490410), (4, 7245205), (5, 5796164), (10, 2898082), (11, 2634620), (20, 1449041), (22, 1317310), (44, 658655), (55, 526924), (110, 263462), (220, 131731)]