12878690

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:203

約数の個数: 64

約数和(自身を含む): 27433728

約数和(自身を除く): 14555038

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 71, 85, 97, 110, 142, 170, 187, 194, 355, 374, 485, 710, 781, 935, 970, 1067, 1207, 1562, 1649, 1870, 2134, 2414, 3298, 3905, 5335, 6035, 6887, 7810, 8245, 10670, 12070, 13277, 13774, 16490, 18139, 26554, 34435, 36278, 66385, 68870, 75757, 90695, 117079, 132770, 151514, 181390, 234158, 378785, 585395, 757570, 1170790, 1287869, 2575738, 6439345, 12878690]

約数ペア:

[(1, 12878690), (2, 6439345), (5, 2575738), (10, 1287869), (11, 1170790), (17, 757570), (22, 585395), (34, 378785), (55, 234158), (71, 181390), (85, 151514), (97, 132770), (110, 117079), (142, 90695), (170, 75757), (187, 68870), (194, 66385), (355, 36278), (374, 34435), (485, 26554), (710, 18139), (781, 16490), (935, 13774), (970, 13277), (1067, 12070), (1207, 10670), (1562, 8245), (1649, 7810), (1870, 6887), (2134, 6035), (2414, 5335), (3298, 3905)]