201998975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{1907}}^1$

素因数の和:2159

約数の個数: 24

約数和(自身を含む): 264983040

約数和(自身を除く): 62984065

約数列:

[1, 5, 19, 25, 95, 223, 475, 1115, 1907, 4237, 5575, 9535, 21185, 36233, 47675, 105925, 181165, 425261, 905825, 2126305, 8079959, 10631525, 40399795, 201998975]

約数ペア:

[(1, 201998975), (5, 40399795), (19, 10631525), (25, 8079959), (95, 2126305), (223, 905825), (475, 425261), (1115, 181165), (1907, 105925), (4237, 47675), (5575, 36233), (9535, 21185)]