81853060

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{977}}^1$

素因数の和:1116

約数の個数: 48

約数和(自身を含む): 177448320

約数和(自身を除く): 95595260

約数列:

[1, 2, 4, 5, 10, 20, 59, 71, 118, 142, 236, 284, 295, 355, 590, 710, 977, 1180, 1420, 1954, 3908, 4189, 4885, 8378, 9770, 16756, 19540, 20945, 41890, 57643, 69367, 83780, 115286, 138734, 230572, 277468, 288215, 346835, 576430, 693670, 1152860, 1387340, 4092653, 8185306, 16370612, 20463265, 40926530, 81853060]

約数ペア:

[(1, 81853060), (2, 40926530), (4, 20463265), (5, 16370612), (10, 8185306), (20, 4092653), (59, 1387340), (71, 1152860), (118, 693670), (142, 576430), (236, 346835), (284, 288215), (295, 277468), (355, 230572), (590, 138734), (710, 115286), (977, 83780), (1180, 69367), (1420, 57643), (1954, 41890), (3908, 20945), (4189, 19540), (4885, 16756), (8378, 9770)]