78384025

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{571}}^1$

素因数の和:634

約数の個数: 36

約数和(自身を含む): 108874480

約数和(自身を除く): 30490455

約数列:

[1, 5, 17, 19, 25, 85, 95, 289, 323, 425, 475, 571, 1445, 1615, 2855, 5491, 7225, 8075, 9707, 10849, 14275, 27455, 48535, 54245, 137275, 165019, 184433, 242675, 271225, 825095, 922165, 3135361, 4125475, 4610825, 15676805, 78384025]

約数ペア:

[(1, 78384025), (5, 15676805), (17, 4610825), (19, 4125475), (25, 3135361), (85, 922165), (95, 825095), (289, 271225), (323, 242675), (425, 184433), (475, 165019), (571, 137275), (1445, 54245), (1615, 48535), (2855, 27455), (5491, 14275), (7225, 10849), (8075, 9707)]