208451875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{853}}^1$

素因数の和:913

約数の個数: 40

約数和(自身を含む): 288132768

約数和(自身を除く): 79680893

約数列:

[1, 5, 17, 23, 25, 85, 115, 125, 391, 425, 575, 625, 853, 1955, 2125, 2875, 4265, 9775, 10625, 14375, 14501, 19619, 21325, 48875, 72505, 98095, 106625, 244375, 333523, 362525, 490475, 533125, 1667615, 1812625, 2452375, 8338075, 9063125, 12261875, 41690375, 208451875]

約数ペア:

[(1, 208451875), (5, 41690375), (17, 12261875), (23, 9063125), (25, 8338075), (85, 2452375), (115, 1812625), (125, 1667615), (391, 533125), (425, 490475), (575, 362525), (625, 333523), (853, 244375), (1955, 106625), (2125, 98095), (2875, 72505), (4265, 48875), (9775, 21325), (10625, 19619), (14375, 14501)]