156928400

素因数分解:

$2^4\times 5^2\times {\mathrm{392321}}^1$

素因数の和:392339

約数の個数: 30

約数和(自身を含む): 377021442

約数和(自身を除く): 220093042

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 392321, 784642, 1569284, 1961605, 3138568, 3923210, 6277136, 7846420, 9808025, 15692840, 19616050, 31385680, 39232100, 78464200, 156928400]

約数ペア:

[(1, 156928400), (2, 78464200), (4, 39232100), (5, 31385680), (8, 19616050), (10, 15692840), (16, 9808025), (20, 7846420), (25, 6277136), (40, 3923210), (50, 3138568), (80, 1961605), (100, 1569284), (200, 784642), (400, 392321)]