127480400

素因数分解:

$2^4\times 5^2\times {\mathrm{318701}}^1$

素因数の和:318719

約数の個数: 30

約数和(自身を含む): 306272622

約数和(自身を除く): 178792222

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 318701, 637402, 1274804, 1593505, 2549608, 3187010, 5099216, 6374020, 7967525, 12748040, 15935050, 25496080, 31870100, 63740200, 127480400]

約数ペア:

[(1, 127480400), (2, 63740200), (4, 31870100), (5, 25496080), (8, 15935050), (10, 12748040), (16, 7967525), (20, 6374020), (25, 5099216), (40, 3187010), (50, 2549608), (80, 1593505), (100, 1274804), (200, 637402), (400, 318701)]