129735400

素因数分解:

$2^3\times 5^2\times {\mathrm{648677}}^1$

素因数の和:648693

約数の個数: 24

約数和(自身を含む): 301635270

約数和(自身を除く): 171899870

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 648677, 1297354, 2594708, 3243385, 5189416, 6486770, 12973540, 16216925, 25947080, 32433850, 64867700, 129735400]

約数ペア:

[(1, 129735400), (2, 64867700), (4, 32433850), (5, 25947080), (8, 16216925), (10, 12973540), (20, 6486770), (25, 5189416), (40, 3243385), (50, 2594708), (100, 1297354), (200, 648677)]