18173885180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{911}}^1\times {\mathrm{90679}}^1$

素因数の和:91610

約数の個数: 48

約数和(自身を含む): 41680880640

約数和(自身を除く): 23506995460

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 911, 1822, 3644, 4555, 9110, 10021, 18220, 20042, 40084, 50105, 90679, 100210, 181358, 200420, 362716, 453395, 906790, 997469, 1813580, 1994938, 3989876, 4987345, 9974690, 19949380, 82608569, 165217138, 330434276, 413042845, 826085690, 908694259, 1652171380, 1817388518, 3634777036, 4543471295, 9086942590, 18173885180]

約数ペア:

[(1, 18173885180), (2, 9086942590), (4, 4543471295), (5, 3634777036), (10, 1817388518), (11, 1652171380), (20, 908694259), (22, 826085690), (44, 413042845), (55, 330434276), (110, 165217138), (220, 82608569), (911, 19949380), (1822, 9974690), (3644, 4987345), (4555, 3989876), (9110, 1994938), (10021, 1813580), (18220, 997469), (20042, 906790), (40084, 453395), (50105, 362716), (90679, 200420), (100210, 181358)]