20606868

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1$

素因数の和:717

約数の個数: 72

約数和(自身を含む): 56085120

約数和(自身を除く): 35478252

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 47, 57, 76, 94, 114, 141, 171, 188, 228, 282, 342, 423, 564, 641, 684, 846, 893, 1282, 1692, 1786, 1923, 2564, 2679, 3572, 3846, 5358, 5769, 7692, 8037, 10716, 11538, 12179, 16074, 23076, 24358, 30127, 32148, 36537, 48716, 60254, 73074, 90381, 109611, 120508, 146148, 180762, 219222, 271143, 361524, 438444, 542286, 572413, 1084572, 1144826, 1717239, 2289652, 3434478, 5151717, 6868956, 10303434, 20606868]

約数ペア:

[(1, 20606868), (2, 10303434), (3, 6868956), (4, 5151717), (6, 3434478), (9, 2289652), (12, 1717239), (18, 1144826), (19, 1084572), (36, 572413), (38, 542286), (47, 438444), (57, 361524), (76, 271143), (94, 219222), (114, 180762), (141, 146148), (171, 120508), (188, 109611), (228, 90381), (282, 73074), (342, 60254), (423, 48716), (564, 36537), (641, 32148), (684, 30127), (846, 24358), (893, 23076), (1282, 16074), (1692, 12179), (1786, 11538), (1923, 10716), (2564, 8037), (2679, 7692), (3572, 5769), (3846, 5358)]