81712160

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26879}}^1$

素因数の和:26913

約数の個数: 48

約数和(自身を含む): 203212800

約数和(自身を除く): 121500640

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 26879, 53758, 107516, 134395, 215032, 268790, 430064, 510701, 537580, 860128, 1021402, 1075160, 2042804, 2150320, 2553505, 4085608, 4300640, 5107010, 8171216, 10214020, 16342432, 20428040, 40856080, 81712160]

約数ペア:

[(1, 81712160), (2, 40856080), (4, 20428040), (5, 16342432), (8, 10214020), (10, 8171216), (16, 5107010), (19, 4300640), (20, 4085608), (32, 2553505), (38, 2150320), (40, 2042804), (76, 1075160), (80, 1021402), (95, 860128), (152, 537580), (160, 510701), (190, 430064), (304, 268790), (380, 215032), (608, 134395), (760, 107516), (1520, 53758), (3040, 26879)]