90158320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{160997}}^1$

素因数の和:161017

約数の個数: 40

約数和(自身を含む): 239565024

約数和(自身を除く): 149406704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 160997, 321994, 643988, 804985, 1126979, 1287976, 1609970, 2253958, 2575952, 3219940, 4507916, 5634895, 6439880, 9015832, 11269790, 12879760, 18031664, 22539580, 45079160, 90158320]

約数ペア:

[(1, 90158320), (2, 45079160), (4, 22539580), (5, 18031664), (7, 12879760), (8, 11269790), (10, 9015832), (14, 6439880), (16, 5634895), (20, 4507916), (28, 3219940), (35, 2575952), (40, 2253958), (56, 1609970), (70, 1287976), (80, 1126979), (112, 804985), (140, 643988), (280, 321994), (560, 160997)]