128888004

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21611}}^1$

素因数の和:21696

約数の個数: 48

約数和(自身を含む): 348558336

約数和(自身を除く): 219670332

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 71, 84, 142, 213, 284, 426, 497, 852, 994, 1491, 1988, 2982, 5964, 21611, 43222, 64833, 86444, 129666, 151277, 259332, 302554, 453831, 605108, 907662, 1534381, 1815324, 3068762, 4603143, 6137524, 9206286, 10740667, 18412572, 21481334, 32222001, 42962668, 64444002, 128888004]

約数ペア:

[(1, 128888004), (2, 64444002), (3, 42962668), (4, 32222001), (6, 21481334), (7, 18412572), (12, 10740667), (14, 9206286), (21, 6137524), (28, 4603143), (42, 3068762), (71, 1815324), (84, 1534381), (142, 907662), (213, 605108), (284, 453831), (426, 302554), (497, 259332), (852, 151277), (994, 129666), (1491, 86444), (1988, 64833), (2982, 43222), (5964, 21611)]