81787590

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:291

約数の個数: 128

約数和(自身を含む): 233280000

約数和(自身を除く): 151492410

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 90, 95, 107, 114, 135, 149, 171, 190, 214, 270, 285, 298, 321, 342, 447, 513, 535, 570, 642, 745, 855, 894, 963, 1026, 1070, 1341, 1490, 1605, 1710, 1926, 2033, 2235, 2565, 2682, 2831, 2889, 3210, 4023, 4066, 4470, 4815, 5130, 5662, 5778, 6099, 6705, 8046, 8493, 9630, 10165, 12198, 13410, 14155, 14445, 15943, 16986, 18297, 20115, 20330, 25479, 28310, 28890, 30495, 31886, 36594, 40230, 42465, 47829, 50958, 54891, 60990, 76437, 79715, 84930, 91485, 95658, 109782, 127395, 143487, 152874, 159430, 182970, 239145, 254790, 274455, 286974, 302917, 382185, 430461, 478290, 548910, 605834, 717435, 764370, 860922, 908751, 1434870, 1514585, 1817502, 2152305, 2726253, 3029170, 4304610, 4543755, 5452506, 8178759, 9087510, 13631265, 16357518, 27262530, 40893795, 81787590]

約数ペア:

[(1, 81787590), (2, 40893795), (3, 27262530), (5, 16357518), (6, 13631265), (9, 9087510), (10, 8178759), (15, 5452506), (18, 4543755), (19, 4304610), (27, 3029170), (30, 2726253), (38, 2152305), (45, 1817502), (54, 1514585), (57, 1434870), (90, 908751), (95, 860922), (107, 764370), (114, 717435), (135, 605834), (149, 548910), (171, 478290), (190, 430461), (214, 382185), (270, 302917), (285, 286974), (298, 274455), (321, 254790), (342, 239145), (447, 182970), (513, 159430), (535, 152874), (570, 143487), (642, 127395), (745, 109782), (855, 95658), (894, 91485), (963, 84930), (1026, 79715), (1070, 76437), (1341, 60990), (1490, 54891), (1605, 50958), (1710, 47829), (1926, 42465), (2033, 40230), (2235, 36594), (2565, 31886), (2682, 30495), (2831, 28890), (2889, 28310), (3210, 25479), (4023, 20330), (4066, 20115), (4470, 18297), (4815, 16986), (5130, 15943), (5662, 14445), (5778, 14155), (6099, 13410), (6705, 12198), (8046, 10165), (8493, 9630)]