25897960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{829}}^1$

素因数の和:922

約数の個数: 64

約数和(自身を含む): 64540800

約数和(自身を除く): 38642840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 829, 1420, 1562, 1658, 2840, 3124, 3316, 3905, 4145, 6248, 6632, 7810, 8290, 9119, 15620, 16580, 18238, 31240, 33160, 36476, 45595, 58859, 72952, 91190, 117718, 182380, 235436, 294295, 364760, 470872, 588590, 647449, 1177180, 1294898, 2354360, 2589796, 3237245, 5179592, 6474490, 12948980, 25897960]

約数ペア:

[(1, 25897960), (2, 12948980), (4, 6474490), (5, 5179592), (8, 3237245), (10, 2589796), (11, 2354360), (20, 1294898), (22, 1177180), (40, 647449), (44, 588590), (55, 470872), (71, 364760), (88, 294295), (110, 235436), (142, 182380), (220, 117718), (284, 91190), (355, 72952), (440, 58859), (568, 45595), (710, 36476), (781, 33160), (829, 31240), (1420, 18238), (1562, 16580), (1658, 15620), (2840, 9119), (3124, 8290), (3316, 7810), (3905, 6632), (4145, 6248)]