31640985

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1609}}^1$

素因数の和:1662

約数の個数: 48

約数和(自身を含む): 60278400

約数和(自身を除く): 28637415

約数列:

[1, 3, 5, 9, 15, 19, 23, 45, 57, 69, 95, 115, 171, 207, 285, 345, 437, 855, 1035, 1311, 1609, 2185, 3933, 4827, 6555, 8045, 14481, 19665, 24135, 30571, 37007, 72405, 91713, 111021, 152855, 185035, 275139, 333063, 458565, 555105, 703133, 1375695, 1665315, 2109399, 3515665, 6328197, 10546995, 31640985]

約数ペア:

[(1, 31640985), (3, 10546995), (5, 6328197), (9, 3515665), (15, 2109399), (19, 1665315), (23, 1375695), (45, 703133), (57, 555105), (69, 458565), (95, 333063), (115, 275139), (171, 185035), (207, 152855), (285, 111021), (345, 91713), (437, 72405), (855, 37007), (1035, 30571), (1311, 24135), (1609, 19665), (2185, 14481), (3933, 8045), (4827, 6555)]