20265588

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{587}}^1$

素因数の和:741

約数の個数: 72

約数和(自身を含む): 59072832

約数和(自身を除く): 38807244

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 137, 252, 274, 411, 548, 587, 822, 959, 1174, 1233, 1644, 1761, 1918, 2348, 2466, 2877, 3522, 3836, 4109, 4932, 5283, 5754, 7044, 8218, 8631, 10566, 11508, 12327, 16436, 17262, 21132, 24654, 34524, 36981, 49308, 73962, 80419, 147924, 160838, 241257, 321676, 482514, 562933, 723771, 965028, 1125866, 1447542, 1688799, 2251732, 2895084, 3377598, 5066397, 6755196, 10132794, 20265588]

約数ペア:

[(1, 20265588), (2, 10132794), (3, 6755196), (4, 5066397), (6, 3377598), (7, 2895084), (9, 2251732), (12, 1688799), (14, 1447542), (18, 1125866), (21, 965028), (28, 723771), (36, 562933), (42, 482514), (63, 321676), (84, 241257), (126, 160838), (137, 147924), (252, 80419), (274, 73962), (411, 49308), (548, 36981), (587, 34524), (822, 24654), (959, 21132), (1174, 17262), (1233, 16436), (1644, 12327), (1761, 11508), (1918, 10566), (2348, 8631), (2466, 8218), (2877, 7044), (3522, 5754), (3836, 5283), (4109, 4932)]