21532400

素因数分解:

$2^4\times 5^2\times {\mathrm{53831}}^1$

素因数の和:53849

約数の個数: 30

約数和(自身を含む): 51732552

約数和(自身を除く): 30200152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 53831, 107662, 215324, 269155, 430648, 538310, 861296, 1076620, 1345775, 2153240, 2691550, 4306480, 5383100, 10766200, 21532400]

約数ペア:

[(1, 21532400), (2, 10766200), (4, 5383100), (5, 4306480), (8, 2691550), (10, 2153240), (16, 1345775), (20, 1076620), (25, 861296), (40, 538310), (50, 430648), (80, 269155), (100, 215324), (200, 107662), (400, 53831)]