52400

素因数分解:

$2^4\times 5^2\times {\mathrm{131}}^1$

素因数の和:149

約数の個数: 30

約数和(自身を含む): 126852

約数和(自身を除く): 74452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 131, 200, 262, 400, 524, 655, 1048, 1310, 2096, 2620, 3275, 5240, 6550, 10480, 13100, 26200, 52400]

約数ペア:

[(1, 52400), (2, 26200), (4, 13100), (5, 10480), (8, 6550), (10, 5240), (16, 3275), (20, 2620), (25, 2096), (40, 1310), (50, 1048), (80, 655), (100, 524), (131, 400), (200, 262)]