20211761280

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{244813}}^1$

素因数の和:244878

約数の個数: 128

約数和(自身を含む): 65923513920

約数和(自身を除く): 45711752640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 64, 80, 86, 96, 120, 128, 129, 160, 172, 192, 215, 240, 258, 320, 344, 384, 430, 480, 516, 640, 645, 688, 860, 960, 1032, 1290, 1376, 1720, 1920, 2064, 2580, 2752, 3440, 4128, 5160, 5504, 6880, 8256, 10320, 13760, 16512, 20640, 27520, 41280, 82560, 244813, 489626, 734439, 979252, 1224065, 1468878, 1958504, 2448130, 2937756, 3672195, 3917008, 4896260, 5875512, 7344390, 7834016, 9792520, 10526959, 11751024, 14688780, 15668032, 19585040, 21053918, 23502048, 29377560, 31336064, 31580877, 39170080, 42107836, 47004096, 52634795, 58755120, 63161754, 78340160, 84215672, 94008192, 105269590, 117510240, 126323508, 156680320, 157904385, 168431344, 210539180, 235020480, 252647016, 315808770, 336862688, 421078360, 470040960, 505294032, 631617540, 673725376, 842156720, 1010588064, 1263235080, 1347450752, 1684313440, 2021176128, 2526470160, 3368626880, 4042352256, 5052940320, 6737253760, 10105880640, 20211761280]

約数ペア:

[(1, 20211761280), (2, 10105880640), (3, 6737253760), (4, 5052940320), (5, 4042352256), (6, 3368626880), (8, 2526470160), (10, 2021176128), (12, 1684313440), (15, 1347450752), (16, 1263235080), (20, 1010588064), (24, 842156720), (30, 673725376), (32, 631617540), (40, 505294032), (43, 470040960), (48, 421078360), (60, 336862688), (64, 315808770), (80, 252647016), (86, 235020480), (96, 210539180), (120, 168431344), (128, 157904385), (129, 156680320), (160, 126323508), (172, 117510240), (192, 105269590), (215, 94008192), (240, 84215672), (258, 78340160), (320, 63161754), (344, 58755120), (384, 52634795), (430, 47004096), (480, 42107836), (516, 39170080), (640, 31580877), (645, 31336064), (688, 29377560), (860, 23502048), (960, 21053918), (1032, 19585040), (1290, 15668032), (1376, 14688780), (1720, 11751024), (1920, 10526959), (2064, 9792520), (2580, 7834016), (2752, 7344390), (3440, 5875512), (4128, 4896260), (5160, 3917008), (5504, 3672195), (6880, 2937756), (8256, 2448130), (10320, 1958504), (13760, 1468878), (16512, 1224065), (20640, 979252), (27520, 734439), (41280, 489626), (82560, 244813)]