208800400

素因数分解:

$2^4\times 5^2\times {\mathrm{109}}^1\times {\mathrm{4789}}^1$

素因数の和:4916

約数の個数: 60

約数和(自身を含む): 506350900

約数和(自身を除く): 297550500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 109, 200, 218, 400, 436, 545, 872, 1090, 1744, 2180, 2725, 4360, 4789, 5450, 8720, 9578, 10900, 19156, 21800, 23945, 38312, 43600, 47890, 76624, 95780, 119725, 191560, 239450, 383120, 478900, 522001, 957800, 1044002, 1915600, 2088004, 2610005, 4176008, 5220010, 8352016, 10440020, 13050025, 20880040, 26100050, 41760080, 52200100, 104400200, 208800400]

約数ペア:

[(1, 208800400), (2, 104400200), (4, 52200100), (5, 41760080), (8, 26100050), (10, 20880040), (16, 13050025), (20, 10440020), (25, 8352016), (40, 5220010), (50, 4176008), (80, 2610005), (100, 2088004), (109, 1915600), (200, 1044002), (218, 957800), (400, 522001), (436, 478900), (545, 383120), (872, 239450), (1090, 191560), (1744, 119725), (2180, 95780), (2725, 76624), (4360, 47890), (4789, 43600), (5450, 38312), (8720, 23945), (9578, 21800), (10900, 19156)]