18767220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{479}}^1\times {\mathrm{653}}^1$

素因数の和:1144

約数の個数: 48

約数和(自身を含む): 52738560

約数和(自身を除く): 33971340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 479, 653, 958, 1306, 1437, 1916, 1959, 2395, 2612, 2874, 3265, 3918, 4790, 5748, 6530, 7185, 7836, 9580, 9795, 13060, 14370, 19590, 28740, 39180, 312787, 625574, 938361, 1251148, 1563935, 1876722, 3127870, 3753444, 4691805, 6255740, 9383610, 18767220]

約数ペア:

[(1, 18767220), (2, 9383610), (3, 6255740), (4, 4691805), (5, 3753444), (6, 3127870), (10, 1876722), (12, 1563935), (15, 1251148), (20, 938361), (30, 625574), (60, 312787), (479, 39180), (653, 28740), (958, 19590), (1306, 14370), (1437, 13060), (1916, 9795), (1959, 9580), (2395, 7836), (2612, 7185), (2874, 6530), (3265, 5748), (3918, 4790)]