1816540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{359}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 4354560

約数和(自身を除く): 2538020

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 220, 230, 253, 359, 460, 506, 718, 1012, 1265, 1436, 1795, 2530, 3590, 3949, 5060, 7180, 7898, 8257, 15796, 16514, 19745, 33028, 39490, 41285, 78980, 82570, 90827, 165140, 181654, 363308, 454135, 908270, 1816540]

約数ペア:

[(1, 1816540), (2, 908270), (4, 454135), (5, 363308), (10, 181654), (11, 165140), (20, 90827), (22, 82570), (23, 78980), (44, 41285), (46, 39490), (55, 33028), (92, 19745), (110, 16514), (115, 15796), (220, 8257), (230, 7898), (253, 7180), (359, 5060), (460, 3949), (506, 3590), (718, 2530), (1012, 1795), (1265, 1436)]