81133040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53377}}^1$

素因数の和:53409

約数の個数: 40

約数和(自身を含む): 198566160

約数和(自身を除く): 117433120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 53377, 106754, 213508, 266885, 427016, 533770, 854032, 1014163, 1067540, 2028326, 2135080, 4056652, 4270160, 5070815, 8113304, 10141630, 16226608, 20283260, 40566520, 81133040]

約数ペア:

[(1, 81133040), (2, 40566520), (4, 20283260), (5, 16226608), (8, 10141630), (10, 8113304), (16, 5070815), (19, 4270160), (20, 4056652), (38, 2135080), (40, 2028326), (76, 1067540), (80, 1014163), (95, 854032), (152, 533770), (190, 427016), (304, 266885), (380, 213508), (760, 106754), (1520, 53377)]