361554520

素因数分解:

$2^3\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{4549}}^1$

素因数の和:6547

約数の個数: 32

約数和(自身を含む): 814086000

約数和(自身を除く): 452531480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1987, 3974, 4549, 7948, 9098, 9935, 15896, 18196, 19870, 22745, 36392, 39740, 45490, 79480, 90980, 181960, 9038863, 18077726, 36155452, 45194315, 72310904, 90388630, 180777260, 361554520]

約数ペア:

[(1, 361554520), (2, 180777260), (4, 90388630), (5, 72310904), (8, 45194315), (10, 36155452), (20, 18077726), (40, 9038863), (1987, 181960), (3974, 90980), (4549, 79480), (7948, 45490), (9098, 39740), (9935, 36392), (15896, 22745), (18196, 19870)]