18511020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{9349}}^1$

素因数の和:9375

約数の個数: 72

約数和(自身を含む): 61261200

約数和(自身を除く): 42750180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 9349, 18698, 28047, 37396, 46745, 56094, 84141, 93490, 102839, 112188, 140235, 168282, 186980, 205678, 280470, 308517, 336564, 411356, 420705, 514195, 560940, 617034, 841410, 925551, 1028390, 1234068, 1542585, 1682820, 1851102, 2056780, 3085170, 3702204, 4627755, 6170340, 9255510, 18511020]

約数ペア:

[(1, 18511020), (2, 9255510), (3, 6170340), (4, 4627755), (5, 3702204), (6, 3085170), (9, 2056780), (10, 1851102), (11, 1682820), (12, 1542585), (15, 1234068), (18, 1028390), (20, 925551), (22, 841410), (30, 617034), (33, 560940), (36, 514195), (44, 420705), (45, 411356), (55, 336564), (60, 308517), (66, 280470), (90, 205678), (99, 186980), (110, 168282), (132, 140235), (165, 112188), (180, 102839), (198, 93490), (220, 84141), (330, 56094), (396, 46745), (495, 37396), (660, 28047), (990, 18698), (1980, 9349)]