20138687954

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{487}}^1\times {\mathrm{1021}}^1$

素因数の和:1791

約数の個数: 64

約数和(自身を含む): 37919895552

約数和(自身を除く): 17781207598

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 263, 487, 526, 974, 1021, 1841, 2042, 2893, 3409, 3682, 5357, 5786, 6818, 7147, 10714, 11231, 14294, 20251, 22462, 37499, 40502, 74998, 78617, 128081, 157234, 256162, 268523, 497227, 537046, 896567, 994454, 1408891, 1793134, 1879661, 2817782, 2953753, 3480589, 3759322, 5469497, 5907506, 6961178, 9862237, 10938994, 19724474, 20676271, 38286479, 41352542, 76572958, 130770701, 261541402, 915394907, 1438477711, 1830789814, 2876955422, 10069343977, 20138687954]

約数ペア:

[(1, 20138687954), (2, 10069343977), (7, 2876955422), (11, 1830789814), (14, 1438477711), (22, 915394907), (77, 261541402), (154, 130770701), (263, 76572958), (487, 41352542), (526, 38286479), (974, 20676271), (1021, 19724474), (1841, 10938994), (2042, 9862237), (2893, 6961178), (3409, 5907506), (3682, 5469497), (5357, 3759322), (5786, 3480589), (6818, 2953753), (7147, 2817782), (10714, 1879661), (11231, 1793134), (14294, 1408891), (20251, 994454), (22462, 896567), (37499, 537046), (40502, 497227), (74998, 268523), (78617, 256162), (128081, 157234)]