20668560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7829}}^1$

素因数の和:7856

約数の個数: 80

約数和(自身を含む): 69906240

約数和(自身を除く): 49237680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 7829, 15658, 23487, 31316, 39145, 46974, 62632, 78290, 86119, 93948, 117435, 125264, 156580, 172238, 187896, 234870, 258357, 313160, 344476, 375792, 430595, 469740, 516714, 626320, 688952, 861190, 939480, 1033428, 1291785, 1377904, 1722380, 1878960, 2066856, 2583570, 3444760, 4133712, 5167140, 6889520, 10334280, 20668560]

約数ペア:

[(1, 20668560), (2, 10334280), (3, 6889520), (4, 5167140), (5, 4133712), (6, 3444760), (8, 2583570), (10, 2066856), (11, 1878960), (12, 1722380), (15, 1377904), (16, 1291785), (20, 1033428), (22, 939480), (24, 861190), (30, 688952), (33, 626320), (40, 516714), (44, 469740), (48, 430595), (55, 375792), (60, 344476), (66, 313160), (80, 258357), (88, 234870), (110, 187896), (120, 172238), (132, 156580), (165, 125264), (176, 117435), (220, 93948), (240, 86119), (264, 78290), (330, 62632), (440, 46974), (528, 39145), (660, 31316), (880, 23487), (1320, 15658), (2640, 7829)]