100805000

素因数分解:

$2^3\times 5^4\times {\mathrm{20161}}^1$

素因数の和:20187

約数の個数: 40

約数和(自身を含む): 236197830

約数和(自身を除く): 135392830

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 625, 1000, 1250, 2500, 5000, 20161, 40322, 80644, 100805, 161288, 201610, 403220, 504025, 806440, 1008050, 2016100, 2520125, 4032200, 5040250, 10080500, 12600625, 20161000, 25201250, 50402500, 100805000]

約数ペア:

[(1, 100805000), (2, 50402500), (4, 25201250), (5, 20161000), (8, 12600625), (10, 10080500), (20, 5040250), (25, 4032200), (40, 2520125), (50, 2016100), (100, 1008050), (125, 806440), (200, 504025), (250, 403220), (500, 201610), (625, 161288), (1000, 100805), (1250, 80644), (2500, 40322), (5000, 20161)]