18045200

素因数分解:

$2^4\times 5^2\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:444

約数の個数: 60

約数和(自身を含む): 43763940

約数和(自身を除く): 25718740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 197, 200, 229, 394, 400, 458, 788, 916, 985, 1145, 1576, 1832, 1970, 2290, 3152, 3664, 3940, 4580, 4925, 5725, 7880, 9160, 9850, 11450, 15760, 18320, 19700, 22900, 39400, 45113, 45800, 78800, 90226, 91600, 180452, 225565, 360904, 451130, 721808, 902260, 1127825, 1804520, 2255650, 3609040, 4511300, 9022600, 18045200]

約数ペア:

[(1, 18045200), (2, 9022600), (4, 4511300), (5, 3609040), (8, 2255650), (10, 1804520), (16, 1127825), (20, 902260), (25, 721808), (40, 451130), (50, 360904), (80, 225565), (100, 180452), (197, 91600), (200, 90226), (229, 78800), (394, 45800), (400, 45113), (458, 39400), (788, 22900), (916, 19700), (985, 18320), (1145, 15760), (1576, 11450), (1832, 9850), (1970, 9160), (2290, 7880), (3152, 5725), (3664, 4925), (3940, 4580)]