20960640

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{1213}}^1$

素因数の和:1241

約数の個数: 128

約数和(自身を含む): 74296800

約数和(自身を除く): 53336160

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, 128, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 864, 960, 1080, 1152, 1213, 1440, 1728, 1920, 2160, 2426, 2880, 3456, 3639, 4320, 4852, 5760, 6065, 7278, 8640, 9704, 10917, 12130, 14556, 17280, 18195, 19408, 21834, 24260, 29112, 32751, 36390, 38816, 43668, 48520, 54585, 58224, 65502, 72780, 77632, 87336, 97040, 109170, 116448, 131004, 145560, 155264, 163755, 174672, 194080, 218340, 232896, 262008, 291120, 327510, 349344, 388160, 436680, 465792, 524016, 582240, 655020, 698688, 776320, 873360, 1048032, 1164480, 1310040, 1397376, 1746720, 2096064, 2328960, 2620080, 3493440, 4192128, 5240160, 6986880, 10480320, 20960640]

約数ペア:

[(1, 20960640), (2, 10480320), (3, 6986880), (4, 5240160), (5, 4192128), (6, 3493440), (8, 2620080), (9, 2328960), (10, 2096064), (12, 1746720), (15, 1397376), (16, 1310040), (18, 1164480), (20, 1048032), (24, 873360), (27, 776320), (30, 698688), (32, 655020), (36, 582240), (40, 524016), (45, 465792), (48, 436680), (54, 388160), (60, 349344), (64, 327510), (72, 291120), (80, 262008), (90, 232896), (96, 218340), (108, 194080), (120, 174672), (128, 163755), (135, 155264), (144, 145560), (160, 131004), (180, 116448), (192, 109170), (216, 97040), (240, 87336), (270, 77632), (288, 72780), (320, 65502), (360, 58224), (384, 54585), (432, 48520), (480, 43668), (540, 38816), (576, 36390), (640, 32751), (720, 29112), (864, 24260), (960, 21834), (1080, 19408), (1152, 18195), (1213, 17280), (1440, 14556), (1728, 12130), (1920, 10917), (2160, 9704), (2426, 8640), (2880, 7278), (3456, 6065), (3639, 5760), (4320, 4852)]