20565703676

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^2\times {\mathrm{719}}^1\times {\mathrm{1063}}^1$

素因数の和:1855

約数の個数: 72

約数和(自身を含む): 42600176640

約数和(自身を除く): 22034472964

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 719, 868, 961, 1063, 1438, 1922, 2126, 2876, 3844, 4252, 5033, 6727, 7441, 10066, 13454, 14882, 20132, 22289, 26908, 29764, 32953, 44578, 65906, 89156, 131812, 156023, 230671, 312046, 461342, 624092, 690959, 764297, 922684, 1021543, 1381918, 1528594, 2043086, 2763836, 3057188, 4086172, 4836713, 5350079, 7150801, 9673426, 10700158, 14301602, 19346852, 21400316, 23693207, 28603204, 47386414, 94772828, 165852449, 331704898, 663409796, 734489417, 1468978834, 2937957668, 5141425919, 10282851838, 20565703676]

約数ペア:

[(1, 20565703676), (2, 10282851838), (4, 5141425919), (7, 2937957668), (14, 1468978834), (28, 734489417), (31, 663409796), (62, 331704898), (124, 165852449), (217, 94772828), (434, 47386414), (719, 28603204), (868, 23693207), (961, 21400316), (1063, 19346852), (1438, 14301602), (1922, 10700158), (2126, 9673426), (2876, 7150801), (3844, 5350079), (4252, 4836713), (5033, 4086172), (6727, 3057188), (7441, 2763836), (10066, 2043086), (13454, 1528594), (14882, 1381918), (20132, 1021543), (22289, 922684), (26908, 764297), (29764, 690959), (32953, 624092), (44578, 461342), (65906, 312046), (89156, 230671), (131812, 156023)]