82778590

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{1999}}^1$

素因数の和:2148

約数の個数: 32

約数和(自身を含む): 154224000

約数和(自身を除く): 71445410

約数列:

[1, 2, 5, 10, 41, 82, 101, 202, 205, 410, 505, 1010, 1999, 3998, 4141, 8282, 9995, 19990, 20705, 41410, 81959, 163918, 201899, 403798, 409795, 819590, 1009495, 2018990, 8277859, 16555718, 41389295, 82778590]

約数ペア:

[(1, 82778590), (2, 41389295), (5, 16555718), (10, 8277859), (41, 2018990), (82, 1009495), (101, 819590), (202, 409795), (205, 403798), (410, 201899), (505, 163918), (1010, 81959), (1999, 41410), (3998, 20705), (4141, 19990), (8282, 9995)]