20525154

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{673}}^1$

素因数の和:731

約数の個数: 64

約数和(自身を含む): 48916224

約数和(自身を除く): 28391070

約数列:

[1, 2, 3, 6, 13, 17, 23, 26, 34, 39, 46, 51, 69, 78, 102, 138, 221, 299, 391, 442, 598, 663, 673, 782, 897, 1173, 1326, 1346, 1794, 2019, 2346, 4038, 5083, 8749, 10166, 11441, 15249, 15479, 17498, 22882, 26247, 30498, 30958, 34323, 46437, 52494, 68646, 92874, 148733, 201227, 263143, 297466, 402454, 446199, 526286, 603681, 789429, 892398, 1207362, 1578858, 3420859, 6841718, 10262577, 20525154]

約数ペア:

[(1, 20525154), (2, 10262577), (3, 6841718), (6, 3420859), (13, 1578858), (17, 1207362), (23, 892398), (26, 789429), (34, 603681), (39, 526286), (46, 446199), (51, 402454), (69, 297466), (78, 263143), (102, 201227), (138, 148733), (221, 92874), (299, 68646), (391, 52494), (442, 46437), (598, 34323), (663, 30958), (673, 30498), (782, 26247), (897, 22882), (1173, 17498), (1326, 15479), (1346, 15249), (1794, 11441), (2019, 10166), (2346, 8749), (4038, 5083)]