9991720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{13147}}^1$

素因数の和:13177

約数の個数: 32

約数和(自身を含む): 23666400

約数和(自身を除く): 13674680

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 13147, 26294, 52588, 65735, 105176, 131470, 249793, 262940, 499586, 525880, 999172, 1248965, 1998344, 2497930, 4995860, 9991720]

約数ペア:

[(1, 9991720), (2, 4995860), (4, 2497930), (5, 1998344), (8, 1248965), (10, 999172), (19, 525880), (20, 499586), (38, 262940), (40, 249793), (76, 131470), (95, 105176), (152, 65735), (190, 52588), (380, 26294), (760, 13147)]