19811520

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{2293}}^1$

素因数の和:2319

約数の個数: 112

約数和(自身を含む): 69921120

約数和(自身を除く): 50109600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 432, 480, 540, 576, 720, 864, 960, 1080, 1440, 1728, 2160, 2293, 2880, 4320, 4586, 6879, 8640, 9172, 11465, 13758, 18344, 20637, 22930, 27516, 34395, 36688, 41274, 45860, 55032, 61911, 68790, 73376, 82548, 91720, 103185, 110064, 123822, 137580, 146752, 165096, 183440, 206370, 220128, 247644, 275160, 309555, 330192, 366880, 412740, 440256, 495288, 550320, 619110, 660384, 733760, 825480, 990576, 1100640, 1238220, 1320768, 1650960, 1981152, 2201280, 2476440, 3301920, 3962304, 4952880, 6603840, 9905760, 19811520]

約数ペア:

[(1, 19811520), (2, 9905760), (3, 6603840), (4, 4952880), (5, 3962304), (6, 3301920), (8, 2476440), (9, 2201280), (10, 1981152), (12, 1650960), (15, 1320768), (16, 1238220), (18, 1100640), (20, 990576), (24, 825480), (27, 733760), (30, 660384), (32, 619110), (36, 550320), (40, 495288), (45, 440256), (48, 412740), (54, 366880), (60, 330192), (64, 309555), (72, 275160), (80, 247644), (90, 220128), (96, 206370), (108, 183440), (120, 165096), (135, 146752), (144, 137580), (160, 123822), (180, 110064), (192, 103185), (216, 91720), (240, 82548), (270, 73376), (288, 68790), (320, 61911), (360, 55032), (432, 45860), (480, 41274), (540, 36688), (576, 34395), (720, 27516), (864, 22930), (960, 20637), (1080, 18344), (1440, 13758), (1728, 11465), (2160, 9172), (2293, 8640), (2880, 6879), (4320, 4586)]