209217875

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{40823}}^1$

素因数の和:40879

約数の個数: 16

約数和(自身を含む): 267478848

約数和(自身を除く): 58260973

約数列:

[1, 5, 25, 41, 125, 205, 1025, 5125, 40823, 204115, 1020575, 1673743, 5102875, 8368715, 41843575, 209217875]

約数ペア:

[(1, 209217875), (5, 41843575), (25, 8368715), (41, 5102875), (125, 1673743), (205, 1020575), (1025, 204115), (5125, 40823)]