20400160

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{173}}^1$

素因数の和:266

約数の個数: 96

約数和(自身を含む): 53669952

約数和(自身を除く): 33269792

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 67, 80, 88, 110, 134, 160, 173, 176, 220, 268, 335, 346, 352, 440, 536, 670, 692, 737, 865, 880, 1072, 1340, 1384, 1474, 1730, 1760, 1903, 2144, 2680, 2768, 2948, 3460, 3685, 3806, 5360, 5536, 5896, 6920, 7370, 7612, 9515, 10720, 11591, 11792, 13840, 14740, 15224, 19030, 23182, 23584, 27680, 29480, 30448, 38060, 46364, 57955, 58960, 60896, 76120, 92728, 115910, 117920, 127501, 152240, 185456, 231820, 255002, 304480, 370912, 463640, 510004, 637505, 927280, 1020008, 1275010, 1854560, 2040016, 2550020, 4080032, 5100040, 10200080, 20400160]

約数ペア:

[(1, 20400160), (2, 10200080), (4, 5100040), (5, 4080032), (8, 2550020), (10, 2040016), (11, 1854560), (16, 1275010), (20, 1020008), (22, 927280), (32, 637505), (40, 510004), (44, 463640), (55, 370912), (67, 304480), (80, 255002), (88, 231820), (110, 185456), (134, 152240), (160, 127501), (173, 117920), (176, 115910), (220, 92728), (268, 76120), (335, 60896), (346, 58960), (352, 57955), (440, 46364), (536, 38060), (670, 30448), (692, 29480), (737, 27680), (865, 23584), (880, 23182), (1072, 19030), (1340, 15224), (1384, 14740), (1474, 13840), (1730, 11792), (1760, 11591), (1903, 10720), (2144, 9515), (2680, 7612), (2768, 7370), (2948, 6920), (3460, 5896), (3685, 5536), (3806, 5360)]