1804520

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 4098600

約数和(自身を除く): 2294080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 229, 394, 458, 788, 916, 985, 1145, 1576, 1832, 1970, 2290, 3940, 4580, 7880, 9160, 45113, 90226, 180452, 225565, 360904, 451130, 902260, 1804520]

約数ペア:

[(1, 1804520), (2, 902260), (4, 451130), (5, 360904), (8, 225565), (10, 180452), (20, 90226), (40, 45113), (197, 9160), (229, 7880), (394, 4580), (458, 3940), (788, 2290), (916, 1970), (985, 1832), (1145, 1576)]