28528940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{1259}}^1$

素因数の和:1382

約数の個数: 48

約数和(自身を含む): 66044160

約数和(自身を除く): 37515220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 103, 110, 206, 220, 412, 515, 1030, 1133, 1259, 2060, 2266, 2518, 4532, 5036, 5665, 6295, 11330, 12590, 13849, 22660, 25180, 27698, 55396, 69245, 129677, 138490, 259354, 276980, 518708, 648385, 1296770, 1426447, 2593540, 2852894, 5705788, 7132235, 14264470, 28528940]

約数ペア:

[(1, 28528940), (2, 14264470), (4, 7132235), (5, 5705788), (10, 2852894), (11, 2593540), (20, 1426447), (22, 1296770), (44, 648385), (55, 518708), (103, 276980), (110, 259354), (206, 138490), (220, 129677), (412, 69245), (515, 55396), (1030, 27698), (1133, 25180), (1259, 22660), (2060, 13849), (2266, 12590), (2518, 11330), (4532, 6295), (5036, 5665)]