20690123520

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{489823}}^1$

素因数の和:489858

約数の個数: 144

約数和(自身を含む): 72086418432

約数和(自身を除く): 51396294912

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 80, 88, 96, 110, 120, 128, 132, 160, 165, 176, 192, 220, 240, 256, 264, 320, 330, 352, 384, 440, 480, 528, 640, 660, 704, 768, 880, 960, 1056, 1280, 1320, 1408, 1760, 1920, 2112, 2640, 2816, 3520, 3840, 4224, 5280, 7040, 8448, 10560, 14080, 21120, 42240, 489823, 979646, 1469469, 1959292, 2449115, 2938938, 3918584, 4898230, 5388053, 5877876, 7347345, 7837168, 9796460, 10776106, 11755752, 14694690, 15674336, 16164159, 19592920, 21552212, 23511504, 26940265, 29389380, 31348672, 32328318, 39185840, 43104424, 47023008, 53880530, 58778760, 62697344, 64656636, 78371680, 80820795, 86208848, 94046016, 107761060, 117557520, 125394688, 129313272, 156743360, 161641590, 172417696, 188092032, 215522120, 235115040, 258626544, 313486720, 323283180, 344835392, 376184064, 431044240, 470230080, 517253088, 626973440, 646566360, 689670784, 862088480, 940460160, 1034506176, 1293132720, 1379341568, 1724176960, 1880920320, 2069012352, 2586265440, 3448353920, 4138024704, 5172530880, 6896707840, 10345061760, 20690123520]

約数ペア:

[(1, 20690123520), (2, 10345061760), (3, 6896707840), (4, 5172530880), (5, 4138024704), (6, 3448353920), (8, 2586265440), (10, 2069012352), (11, 1880920320), (12, 1724176960), (15, 1379341568), (16, 1293132720), (20, 1034506176), (22, 940460160), (24, 862088480), (30, 689670784), (32, 646566360), (33, 626973440), (40, 517253088), (44, 470230080), (48, 431044240), (55, 376184064), (60, 344835392), (64, 323283180), (66, 313486720), (80, 258626544), (88, 235115040), (96, 215522120), (110, 188092032), (120, 172417696), (128, 161641590), (132, 156743360), (160, 129313272), (165, 125394688), (176, 117557520), (192, 107761060), (220, 94046016), (240, 86208848), (256, 80820795), (264, 78371680), (320, 64656636), (330, 62697344), (352, 58778760), (384, 53880530), (440, 47023008), (480, 43104424), (528, 39185840), (640, 32328318), (660, 31348672), (704, 29389380), (768, 26940265), (880, 23511504), (960, 21552212), (1056, 19592920), (1280, 16164159), (1320, 15674336), (1408, 14694690), (1760, 11755752), (1920, 10776106), (2112, 9796460), (2640, 7837168), (2816, 7347345), (3520, 5877876), (3840, 5388053), (4224, 4898230), (5280, 3918584), (7040, 2938938), (8448, 2449115), (10560, 1959292), (14080, 1469469), (21120, 979646), (42240, 489823)]