281098328

素因数分解:

$2^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{161923}}^1$

素因数の和:161967

約数の個数: 32

約数和(自身を含む): 621788160

約数和(自身を除く): 340689832

約数列:

[1, 2, 4, 7, 8, 14, 28, 31, 56, 62, 124, 217, 248, 434, 868, 1736, 161923, 323846, 647692, 1133461, 1295384, 2266922, 4533844, 5019613, 9067688, 10039226, 20078452, 35137291, 40156904, 70274582, 140549164, 281098328]

約数ペア:

[(1, 281098328), (2, 140549164), (4, 70274582), (7, 40156904), (8, 35137291), (14, 20078452), (28, 10039226), (31, 9067688), (56, 5019613), (62, 4533844), (124, 2266922), (217, 1295384), (248, 1133461), (434, 647692), (868, 323846), (1736, 161923)]