9889975

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{443}}^1$

素因数の和:519

約数の個数: 24

約数和(自身を含む): 13213440

約数和(自身を除く): 3323465

約数列:

[1, 5, 19, 25, 47, 95, 235, 443, 475, 893, 1175, 2215, 4465, 8417, 11075, 20821, 22325, 42085, 104105, 210425, 395599, 520525, 1977995, 9889975]

約数ペア:

[(1, 9889975), (5, 1977995), (19, 520525), (25, 395599), (47, 210425), (95, 104105), (235, 42085), (443, 22325), (475, 20821), (893, 11075), (1175, 8417), (2215, 4465)]