638996985

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{10007}}^1$

素因数の和:10075

約数の個数: 64

約数和(自身を含む): 1268213760

約数和(自身を除く): 629216775

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 43, 45, 55, 99, 129, 135, 165, 215, 297, 387, 473, 495, 645, 1161, 1419, 1485, 1935, 2365, 4257, 5805, 7095, 10007, 12771, 21285, 30021, 50035, 63855, 90063, 110077, 150105, 270189, 330231, 430301, 450315, 550385, 990693, 1290903, 1350945, 1651155, 2151505, 2972079, 3872709, 4733311, 4953465, 6454515, 11618127, 14199933, 14860395, 19363545, 23666555, 42599799, 58090635, 70999665, 127799397, 212998995, 638996985]

約数ペア:

[(1, 638996985), (3, 212998995), (5, 127799397), (9, 70999665), (11, 58090635), (15, 42599799), (27, 23666555), (33, 19363545), (43, 14860395), (45, 14199933), (55, 11618127), (99, 6454515), (129, 4953465), (135, 4733311), (165, 3872709), (215, 2972079), (297, 2151505), (387, 1651155), (473, 1350945), (495, 1290903), (645, 990693), (1161, 550385), (1419, 450315), (1485, 430301), (1935, 330231), (2365, 270189), (4257, 150105), (5805, 110077), (7095, 90063), (10007, 63855), (12771, 50035), (21285, 30021)]