18020740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1009}}^1$

素因数の和:1084

約数の個数: 48

約数和(自身を含む): 40723200

約数和(自身を除く): 22702460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 47, 76, 94, 95, 188, 190, 235, 380, 470, 893, 940, 1009, 1786, 2018, 3572, 4036, 4465, 5045, 8930, 10090, 17860, 19171, 20180, 38342, 47423, 76684, 94846, 95855, 189692, 191710, 237115, 383420, 474230, 901037, 948460, 1802074, 3604148, 4505185, 9010370, 18020740]

約数ペア:

[(1, 18020740), (2, 9010370), (4, 4505185), (5, 3604148), (10, 1802074), (19, 948460), (20, 901037), (38, 474230), (47, 383420), (76, 237115), (94, 191710), (95, 189692), (188, 95855), (190, 94846), (235, 76684), (380, 47423), (470, 38342), (893, 20180), (940, 19171), (1009, 17860), (1786, 10090), (2018, 8930), (3572, 5045), (4036, 4465)]