19605960

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4951}}^1$

素因数の和:4979

約数の個数: 96

約数和(自身を含む): 69526080

約数和(自身を除く): 49920120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 165, 180, 198, 220, 264, 330, 360, 396, 440, 495, 660, 792, 990, 1320, 1980, 3960, 4951, 9902, 14853, 19804, 24755, 29706, 39608, 44559, 49510, 54461, 59412, 74265, 89118, 99020, 108922, 118824, 148530, 163383, 178236, 198040, 217844, 222795, 272305, 297060, 326766, 356472, 435688, 445590, 490149, 544610, 594120, 653532, 816915, 891180, 980298, 1089220, 1307064, 1633830, 1782360, 1960596, 2178440, 2450745, 3267660, 3921192, 4901490, 6535320, 9802980, 19605960]

約数ペア:

[(1, 19605960), (2, 9802980), (3, 6535320), (4, 4901490), (5, 3921192), (6, 3267660), (8, 2450745), (9, 2178440), (10, 1960596), (11, 1782360), (12, 1633830), (15, 1307064), (18, 1089220), (20, 980298), (22, 891180), (24, 816915), (30, 653532), (33, 594120), (36, 544610), (40, 490149), (44, 445590), (45, 435688), (55, 356472), (60, 326766), (66, 297060), (72, 272305), (88, 222795), (90, 217844), (99, 198040), (110, 178236), (120, 163383), (132, 148530), (165, 118824), (180, 108922), (198, 99020), (220, 89118), (264, 74265), (330, 59412), (360, 54461), (396, 49510), (440, 44559), (495, 39608), (660, 29706), (792, 24755), (990, 19804), (1320, 14853), (1980, 9902), (3960, 4951)]