2218060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{449}}^1$

素因数の和:490

約数の個数: 48

約数和(自身を含む): 5292000

約数和(自身を除く): 3073940

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 449, 494, 898, 988, 1235, 1796, 2245, 2470, 4490, 4940, 5837, 8531, 8980, 11674, 17062, 23348, 29185, 34124, 42655, 58370, 85310, 110903, 116740, 170620, 221806, 443612, 554515, 1109030, 2218060]

約数ペア:

[(1, 2218060), (2, 1109030), (4, 554515), (5, 443612), (10, 221806), (13, 170620), (19, 116740), (20, 110903), (26, 85310), (38, 58370), (52, 42655), (65, 34124), (76, 29185), (95, 23348), (130, 17062), (190, 11674), (247, 8980), (260, 8531), (380, 5837), (449, 4940), (494, 4490), (898, 2470), (988, 2245), (1235, 1796)]