20657340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10433}}^1$

素因数の和:10459

約数の個数: 72

約数和(自身を含む): 68363568

約数和(自身を除く): 47706228

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, 10433, 20866, 31299, 41732, 52165, 62598, 93897, 104330, 114763, 125196, 156495, 187794, 208660, 229526, 312990, 344289, 375588, 459052, 469485, 573815, 625980, 688578, 938970, 1032867, 1147630, 1377156, 1721445, 1877940, 2065734, 2295260, 3442890, 4131468, 5164335, 6885780, 10328670, 20657340]

約数ペア:

[(1, 20657340), (2, 10328670), (3, 6885780), (4, 5164335), (5, 4131468), (6, 3442890), (9, 2295260), (10, 2065734), (11, 1877940), (12, 1721445), (15, 1377156), (18, 1147630), (20, 1032867), (22, 938970), (30, 688578), (33, 625980), (36, 573815), (44, 469485), (45, 459052), (55, 375588), (60, 344289), (66, 312990), (90, 229526), (99, 208660), (110, 187794), (132, 156495), (165, 125196), (180, 114763), (198, 104330), (220, 93897), (330, 62598), (396, 52165), (495, 41732), (660, 31299), (990, 20866), (1980, 10433)]