99805000

素因数分解:

$2^3\times 5^4\times {\mathrm{19961}}^1$

素因数の和:19987

約数の個数: 40

約数和(自身を含む): 233854830

約数和(自身を除く): 134049830

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 19961, 39922, 79844, 99805, 159688, 199610, 399220, 499025, 798440, 998050, 1996100, 2495125, 3992200, 4990250, 9980500, 12475625, 19961000, 24951250, 49902500, 99805000]

約数ペア:

[(1, 99805000), (2, 49902500), (4, 24951250), (5, 19961000), (8, 12475625), (10, 9980500), (20, 4990250), (25, 3992200), (40, 2495125), (50, 1996100), (100, 998050), (125, 798440), (200, 499025), (250, 399220), (500, 199610), (625, 159688), (1000, 99805), (1250, 79844), (2500, 39922), (5000, 19961)]