325080400

素因数分解:

$2^4\times 5^2\times {\mathrm{812701}}^1$

素因数の和:812719

約数の個数: 30

約数和(自身を含む): 781006622

約数和(自身を除く): 455926222

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 812701, 1625402, 3250804, 4063505, 6501608, 8127010, 13003216, 16254020, 20317525, 32508040, 40635050, 65016080, 81270100, 162540200, 325080400]

約数ペア:

[(1, 325080400), (2, 162540200), (4, 81270100), (5, 65016080), (8, 40635050), (10, 32508040), (16, 20317525), (20, 16254020), (25, 13003216), (40, 8127010), (50, 6501608), (80, 4063505), (100, 3250804), (200, 1625402), (400, 812701)]