813048400

素因数分解:

$2^4\times 5^2\times {\mathrm{2032621}}^1$

素因数の和:2032639

約数の個数: 30

約数和(自身を含む): 1953349742

約数和(自身を除く): 1140301342

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 2032621, 4065242, 8130484, 10163105, 16260968, 20326210, 32521936, 40652420, 50815525, 81304840, 101631050, 162609680, 203262100, 406524200, 813048400]

約数ペア:

[(1, 813048400), (2, 406524200), (4, 203262100), (5, 162609680), (8, 101631050), (10, 81304840), (16, 50815525), (20, 40652420), (25, 32521936), (40, 20326210), (50, 16260968), (80, 10163105), (100, 8130484), (200, 4065242), (400, 2032621)]