81388790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{40093}}^1$

素因数の和:40136

約数の個数: 32

約数和(自身を含む): 173206080

約数和(自身を除く): 91817290

約数列:

[1, 2, 5, 7, 10, 14, 29, 35, 58, 70, 145, 203, 290, 406, 1015, 2030, 40093, 80186, 200465, 280651, 400930, 561302, 1162697, 1403255, 2325394, 2806510, 5813485, 8138879, 11626970, 16277758, 40694395, 81388790]

約数ペア:

[(1, 81388790), (2, 40694395), (5, 16277758), (7, 11626970), (10, 8138879), (14, 5813485), (29, 2806510), (35, 2325394), (58, 1403255), (70, 1162697), (145, 561302), (203, 400930), (290, 280651), (406, 200465), (1015, 80186), (2030, 40093)]