20424240

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1493}}^1$

素因数の和:1531

約数の個数: 120

約数和(自身を含む): 72249840

約数和(自身を除く): 51825600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 90, 95, 114, 120, 144, 152, 171, 180, 190, 228, 240, 285, 304, 342, 360, 380, 456, 570, 684, 720, 760, 855, 912, 1140, 1368, 1493, 1520, 1710, 2280, 2736, 2986, 3420, 4479, 4560, 5972, 6840, 7465, 8958, 11944, 13437, 13680, 14930, 17916, 22395, 23888, 26874, 28367, 29860, 35832, 44790, 53748, 56734, 59720, 67185, 71664, 85101, 89580, 107496, 113468, 119440, 134370, 141835, 170202, 179160, 214992, 226936, 255303, 268740, 283670, 340404, 358320, 425505, 453872, 510606, 537480, 567340, 680808, 851010, 1021212, 1074960, 1134680, 1276515, 1361616, 1702020, 2042424, 2269360, 2553030, 3404040, 4084848, 5106060, 6808080, 10212120, 20424240]

約数ペア:

[(1, 20424240), (2, 10212120), (3, 6808080), (4, 5106060), (5, 4084848), (6, 3404040), (8, 2553030), (9, 2269360), (10, 2042424), (12, 1702020), (15, 1361616), (16, 1276515), (18, 1134680), (19, 1074960), (20, 1021212), (24, 851010), (30, 680808), (36, 567340), (38, 537480), (40, 510606), (45, 453872), (48, 425505), (57, 358320), (60, 340404), (72, 283670), (76, 268740), (80, 255303), (90, 226936), (95, 214992), (114, 179160), (120, 170202), (144, 141835), (152, 134370), (171, 119440), (180, 113468), (190, 107496), (228, 89580), (240, 85101), (285, 71664), (304, 67185), (342, 59720), (360, 56734), (380, 53748), (456, 44790), (570, 35832), (684, 29860), (720, 28367), (760, 26874), (855, 23888), (912, 22395), (1140, 17916), (1368, 14930), (1493, 13680), (1520, 13437), (1710, 11944), (2280, 8958), (2736, 7465), (2986, 6840), (3420, 5972), (4479, 4560)]