81435853260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23811653}}^1$

素因数の和:23811687

約数の個数: 72

約数和(自身を含む): 260023261680

約数和(自身を除く): 178587408420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 23811653, 47623306, 71434959, 95246612, 119058265, 142869918, 214304877, 238116530, 285739836, 357174795, 428609754, 452421407, 476233060, 714349590, 857219508, 904842814, 1071524385, 1357264221, 1428699180, 1809685628, 2143048770, 2262107035, 2714528442, 4071792663, 4286097540, 4524214070, 5429056884, 6786321105, 8143585326, 9048428140, 13572642210, 16287170652, 20358963315, 27145284420, 40717926630, 81435853260]

約数ペア:

[(1, 81435853260), (2, 40717926630), (3, 27145284420), (4, 20358963315), (5, 16287170652), (6, 13572642210), (9, 9048428140), (10, 8143585326), (12, 6786321105), (15, 5429056884), (18, 4524214070), (19, 4286097540), (20, 4071792663), (30, 2714528442), (36, 2262107035), (38, 2143048770), (45, 1809685628), (57, 1428699180), (60, 1357264221), (76, 1071524385), (90, 904842814), (95, 857219508), (114, 714349590), (171, 476233060), (180, 452421407), (190, 428609754), (228, 357174795), (285, 285739836), (342, 238116530), (380, 214304877), (570, 142869918), (684, 119058265), (855, 95246612), (1140, 71434959), (1710, 47623306), (3420, 23811653)]