139972400

素因数分解:

$2^4\times 5^2\times {\mathrm{349931}}^1$

素因数の和:349949

約数の個数: 30

約数和(自身を含む): 336284652

約数和(自身を除く): 196312252

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 349931, 699862, 1399724, 1749655, 2799448, 3499310, 5598896, 6998620, 8748275, 13997240, 17496550, 27994480, 34993100, 69986200, 139972400]

約数ペア:

[(1, 139972400), (2, 69986200), (4, 34993100), (5, 27994480), (8, 17496550), (10, 13997240), (16, 8748275), (20, 6998620), (25, 5598896), (40, 3499310), (50, 2799448), (80, 1749655), (100, 1399724), (200, 699862), (400, 349931)]