67120400

素因数分解:

$2^4\times 5^2\times {\mathrm{167801}}^1$

素因数の和:167819

約数の個数: 30

約数和(自身を含む): 161257722

約数和(自身を除く): 94137322

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 167801, 335602, 671204, 839005, 1342408, 1678010, 2684816, 3356020, 4195025, 6712040, 8390050, 13424080, 16780100, 33560200, 67120400]

約数ペア:

[(1, 67120400), (2, 33560200), (4, 16780100), (5, 13424080), (8, 8390050), (10, 6712040), (16, 4195025), (20, 3356020), (25, 2684816), (40, 1678010), (50, 1342408), (80, 839005), (100, 671204), (200, 335602), (400, 167801)]