83875025

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:123

約数の個数: 72

約数和(自身を含む): 127908480

約数和(自身を除く): 44033455

約数列:

[1, 5, 13, 17, 19, 25, 47, 65, 85, 95, 221, 235, 247, 289, 323, 325, 425, 475, 611, 799, 893, 1105, 1175, 1235, 1445, 1615, 3055, 3757, 3995, 4199, 4465, 5491, 5525, 6175, 7225, 8075, 10387, 11609, 13583, 15181, 15275, 18785, 19975, 20995, 22325, 27455, 51935, 58045, 67915, 71383, 75905, 93925, 104975, 137275, 176579, 197353, 258077, 259675, 290225, 339575, 356915, 379525, 882895, 986765, 1290385, 1784575, 3355001, 4414475, 4933825, 6451925, 16775005, 83875025]

約数ペア:

[(1, 83875025), (5, 16775005), (13, 6451925), (17, 4933825), (19, 4414475), (25, 3355001), (47, 1784575), (65, 1290385), (85, 986765), (95, 882895), (221, 379525), (235, 356915), (247, 339575), (289, 290225), (323, 259675), (325, 258077), (425, 197353), (475, 176579), (611, 137275), (799, 104975), (893, 93925), (1105, 75905), (1175, 71383), (1235, 67915), (1445, 58045), (1615, 51935), (3055, 27455), (3757, 22325), (3995, 20995), (4199, 19975), (4465, 18785), (5491, 15275), (5525, 15181), (6175, 13583), (7225, 11609), (8075, 10387)]