20164850

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{113}}^1$

素因数の和:251

約数の個数: 48

約数和(自身を含む): 39184992

約数和(自身を除く): 19020142

約数列:

[1, 2, 5, 10, 25, 43, 50, 83, 86, 113, 166, 215, 226, 415, 430, 565, 830, 1075, 1130, 2075, 2150, 2825, 3569, 4150, 4859, 5650, 7138, 9379, 9718, 17845, 18758, 24295, 35690, 46895, 48590, 89225, 93790, 121475, 178450, 234475, 242950, 403297, 468950, 806594, 2016485, 4032970, 10082425, 20164850]

約数ペア:

[(1, 20164850), (2, 10082425), (5, 4032970), (10, 2016485), (25, 806594), (43, 468950), (50, 403297), (83, 242950), (86, 234475), (113, 178450), (166, 121475), (215, 93790), (226, 89225), (415, 48590), (430, 46895), (565, 35690), (830, 24295), (1075, 18758), (1130, 17845), (2075, 9718), (2150, 9379), (2825, 7138), (3569, 5650), (4150, 4859)]