1972400

素因数分解:

$2^4\times 5^2\times {\mathrm{4931}}^1$

素因数の和:4949

約数の個数: 30

約数和(自身を含む): 4739652

約数和(自身を除く): 2767252

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 4931, 9862, 19724, 24655, 39448, 49310, 78896, 98620, 123275, 197240, 246550, 394480, 493100, 986200, 1972400]

約数ペア:

[(1, 1972400), (2, 986200), (4, 493100), (5, 394480), (8, 246550), (10, 197240), (16, 123275), (20, 98620), (25, 78896), (40, 49310), (50, 39448), (80, 24655), (100, 19724), (200, 9862), (400, 4931)]