20216286520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{26600377}}^1$

素因数の和:26600407

約数の個数: 32

約数和(自身を含む): 47880680400

約数和(自身を除く): 27664393880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 26600377, 53200754, 106401508, 133001885, 212803016, 266003770, 505407163, 532007540, 1010814326, 1064015080, 2021628652, 2527035815, 4043257304, 5054071630, 10108143260, 20216286520]

約数ペア:

[(1, 20216286520), (2, 10108143260), (4, 5054071630), (5, 4043257304), (8, 2527035815), (10, 2021628652), (19, 1064015080), (20, 1010814326), (38, 532007540), (40, 505407163), (76, 266003770), (95, 212803016), (152, 133001885), (190, 106401508), (380, 53200754), (760, 26600377)]