1993451875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{373}}^1\times {\mathrm{503}}^1$

素因数の和:913

約数の個数: 40

約数和(自身を含む): 2649876768

約数和(自身を除く): 656424893

約数列:

[1, 5, 17, 25, 85, 125, 373, 425, 503, 625, 1865, 2125, 2515, 6341, 8551, 9325, 10625, 12575, 31705, 42755, 46625, 62875, 158525, 187619, 213775, 233125, 314375, 792625, 938095, 1068875, 3189523, 3963125, 4690475, 5344375, 15947615, 23452375, 79738075, 117261875, 398690375, 1993451875]

約数ペア:

[(1, 1993451875), (5, 398690375), (17, 117261875), (25, 79738075), (85, 23452375), (125, 15947615), (373, 5344375), (425, 4690475), (503, 3963125), (625, 3189523), (1865, 1068875), (2125, 938095), (2515, 792625), (6341, 314375), (8551, 233125), (9325, 213775), (10625, 187619), (12575, 158525), (31705, 62875), (42755, 46625)]