18196780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{2203}}^1$

素因数の和:2278

約数の個数: 48

約数和(自身を含む): 44432640

約数和(自身を除く): 26235860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 59, 70, 118, 140, 236, 295, 413, 590, 826, 1180, 1652, 2065, 2203, 4130, 4406, 8260, 8812, 11015, 15421, 22030, 30842, 44060, 61684, 77105, 129977, 154210, 259954, 308420, 519908, 649885, 909839, 1299770, 1819678, 2599540, 3639356, 4549195, 9098390, 18196780]

約数ペア:

[(1, 18196780), (2, 9098390), (4, 4549195), (5, 3639356), (7, 2599540), (10, 1819678), (14, 1299770), (20, 909839), (28, 649885), (35, 519908), (59, 308420), (70, 259954), (118, 154210), (140, 129977), (236, 77105), (295, 61684), (413, 44060), (590, 30842), (826, 22030), (1180, 15421), (1652, 11015), (2065, 8812), (2203, 8260), (4130, 4406)]