131345440

素因数分解:

$2^5\times 5^1\times {\mathrm{820909}}^1$

素因数の和:820924

約数の個数: 24

約数和(自身を含む): 310303980

約数和(自身を除く): 178958540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 820909, 1641818, 3283636, 4104545, 6567272, 8209090, 13134544, 16418180, 26269088, 32836360, 65672720, 131345440]

約数ペア:

[(1, 131345440), (2, 65672720), (4, 32836360), (5, 26269088), (8, 16418180), (10, 13134544), (16, 8209090), (20, 6567272), (32, 4104545), (40, 3283636), (80, 1641818), (160, 820909)]