13378375

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:208

約数の個数: 32

約数和(自身を含む): 18120960

約数和(自身を除く): 4742585

約数列:

[1, 5, 19, 25, 43, 95, 125, 131, 215, 475, 655, 817, 1075, 2375, 2489, 3275, 4085, 5375, 5633, 12445, 16375, 20425, 28165, 62225, 102125, 107027, 140825, 311125, 535135, 704125, 2675675, 13378375]

約数ペア:

[(1, 13378375), (5, 2675675), (19, 704125), (25, 535135), (43, 311125), (95, 140825), (125, 107027), (131, 102125), (215, 62225), (475, 28165), (655, 20425), (817, 16375), (1075, 12445), (2375, 5633), (2489, 5375), (3275, 4085)]