181212120

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8831}}^1$

素因数の和:8870

約数の個数: 128

約数和(自身を含む): 635904000

約数和(自身を除く): 454691880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 1026, 1080, 1140, 1368, 1710, 2052, 2280, 2565, 3420, 4104, 5130, 6840, 8831, 10260, 17662, 20520, 26493, 35324, 44155, 52986, 70648, 79479, 88310, 105972, 132465, 158958, 167789, 176620, 211944, 238437, 264930, 317916, 335578, 353240, 397395, 476874, 503367, 529860, 635832, 671156, 794790, 838945, 953748, 1006734, 1059720, 1192185, 1342312, 1510101, 1589580, 1677890, 1907496, 2013468, 2384370, 2516835, 3020202, 3179160, 3355780, 4026936, 4530303, 4768740, 5033670, 6040404, 6711560, 7550505, 9060606, 9537480, 10067340, 12080808, 15101010, 18121212, 20134680, 22651515, 30202020, 36242424, 45303030, 60404040, 90606060, 181212120]

約数ペア:

[(1, 181212120), (2, 90606060), (3, 60404040), (4, 45303030), (5, 36242424), (6, 30202020), (8, 22651515), (9, 20134680), (10, 18121212), (12, 15101010), (15, 12080808), (18, 10067340), (19, 9537480), (20, 9060606), (24, 7550505), (27, 6711560), (30, 6040404), (36, 5033670), (38, 4768740), (40, 4530303), (45, 4026936), (54, 3355780), (57, 3179160), (60, 3020202), (72, 2516835), (76, 2384370), (90, 2013468), (95, 1907496), (108, 1677890), (114, 1589580), (120, 1510101), (135, 1342312), (152, 1192185), (171, 1059720), (180, 1006734), (190, 953748), (216, 838945), (228, 794790), (270, 671156), (285, 635832), (342, 529860), (360, 503367), (380, 476874), (456, 397395), (513, 353240), (540, 335578), (570, 317916), (684, 264930), (760, 238437), (855, 211944), (1026, 176620), (1080, 167789), (1140, 158958), (1368, 132465), (1710, 105972), (2052, 88310), (2280, 79479), (2565, 70648), (3420, 52986), (4104, 44155), (5130, 35324), (6840, 26493), (8831, 20520), (10260, 17662)]