18420380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{829}}^1$

素因数の和:950

約数の個数: 48

約数和(自身を含む): 42668640

約数和(自身を除く): 24248260

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 829, 1010, 1111, 1658, 2020, 2222, 3316, 4145, 4444, 5555, 8290, 9119, 11110, 16580, 18238, 22220, 36476, 45595, 83729, 91190, 167458, 182380, 334916, 418645, 837290, 921019, 1674580, 1842038, 3684076, 4605095, 9210190, 18420380]

約数ペア:

[(1, 18420380), (2, 9210190), (4, 4605095), (5, 3684076), (10, 1842038), (11, 1674580), (20, 921019), (22, 837290), (44, 418645), (55, 334916), (101, 182380), (110, 167458), (202, 91190), (220, 83729), (404, 45595), (505, 36476), (829, 22220), (1010, 18238), (1111, 16580), (1658, 11110), (2020, 9119), (2222, 8290), (3316, 5555), (4145, 4444)]