129938800

素因数分解:

$2^4\times 5^2\times {\mathrm{324847}}^1$

素因数の和:324865

約数の個数: 30

約数和(自身を含む): 312178928

約数和(自身を除く): 182240128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 324847, 649694, 1299388, 1624235, 2598776, 3248470, 5197552, 6496940, 8121175, 12993880, 16242350, 25987760, 32484700, 64969400, 129938800]

約数ペア:

[(1, 129938800), (2, 64969400), (4, 32484700), (5, 25987760), (8, 16242350), (10, 12993880), (16, 8121175), (20, 6496940), (25, 5197552), (40, 3248470), (50, 2598776), (80, 1624235), (100, 1299388), (200, 649694), (400, 324847)]