8006980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1109}}^1$

素因数の和:1156

約数の個数: 36

約数和(自身を含む): 17762220

約数和(自身を除く): 9755240

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1109, 1444, 1805, 2218, 3610, 4436, 5545, 7220, 11090, 21071, 22180, 42142, 84284, 105355, 210710, 400349, 421420, 800698, 1601396, 2001745, 4003490, 8006980]

約数ペア:

[(1, 8006980), (2, 4003490), (4, 2001745), (5, 1601396), (10, 800698), (19, 421420), (20, 400349), (38, 210710), (76, 105355), (95, 84284), (190, 42142), (361, 22180), (380, 21071), (722, 11090), (1109, 7220), (1444, 5545), (1805, 4436), (2218, 3610)]