644805

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:130

約数の個数: 48

約数和(自身を含む): 1347840

約数和(自身を除く): 703035

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 63, 69, 89, 105, 115, 161, 207, 267, 315, 345, 445, 483, 623, 801, 805, 1035, 1335, 1449, 1869, 2047, 2415, 3115, 4005, 5607, 6141, 7245, 9345, 10235, 14329, 18423, 28035, 30705, 42987, 71645, 92115, 128961, 214935, 644805]

約数ペア:

[(1, 644805), (3, 214935), (5, 128961), (7, 92115), (9, 71645), (15, 42987), (21, 30705), (23, 28035), (35, 18423), (45, 14329), (63, 10235), (69, 9345), (89, 7245), (105, 6141), (115, 5607), (161, 4005), (207, 3115), (267, 2415), (315, 2047), (345, 1869), (445, 1449), (483, 1335), (623, 1035), (801, 805)]