80091620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{19727}}^1$

素因数の和:19772

約数の個数: 48

約数和(自身を含む): 198858240

約数和(自身を除く): 118766620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 19727, 39454, 78908, 98635, 138089, 197270, 276178, 394540, 552356, 572083, 690445, 1144166, 1380890, 2288332, 2761780, 2860415, 4004581, 5720830, 8009162, 11441660, 16018324, 20022905, 40045810, 80091620]

約数ペア:

[(1, 80091620), (2, 40045810), (4, 20022905), (5, 16018324), (7, 11441660), (10, 8009162), (14, 5720830), (20, 4004581), (28, 2860415), (29, 2761780), (35, 2288332), (58, 1380890), (70, 1144166), (116, 690445), (140, 572083), (145, 552356), (203, 394540), (290, 276178), (406, 197270), (580, 138089), (812, 98635), (1015, 78908), (2030, 39454), (4060, 19727)]