6396400

素因数分解:

$2^4\times 5^2\times {\mathrm{15991}}^1$

素因数の和:16009

約数の個数: 30

約数和(自身を含む): 15368312

約数和(自身を除く): 8971912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 15991, 31982, 63964, 79955, 127928, 159910, 255856, 319820, 399775, 639640, 799550, 1279280, 1599100, 3198200, 6396400]

約数ペア:

[(1, 6396400), (2, 3198200), (4, 1599100), (5, 1279280), (8, 799550), (10, 639640), (16, 399775), (20, 319820), (25, 255856), (40, 159910), (50, 127928), (80, 79955), (100, 63964), (200, 31982), (400, 15991)]