20561937270

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{648437}}^1$

素因数の和:648605

約数の個数: 64

約数和(自身を含む): 56772043776

約数和(自身を除く): 36210106506

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 151, 210, 302, 453, 755, 906, 1057, 1510, 2114, 2265, 3171, 4530, 5285, 6342, 10570, 15855, 31710, 648437, 1296874, 1945311, 3242185, 3890622, 4539059, 6484370, 9078118, 9726555, 13617177, 19453110, 22695295, 27234354, 45390590, 68085885, 97913987, 136171770, 195827974, 293741961, 489569935, 587483922, 685397909, 979139870, 1370795818, 1468709805, 2056193727, 2937419610, 3426989545, 4112387454, 6853979090, 10280968635, 20561937270]

約数ペア:

[(1, 20561937270), (2, 10280968635), (3, 6853979090), (5, 4112387454), (6, 3426989545), (7, 2937419610), (10, 2056193727), (14, 1468709805), (15, 1370795818), (21, 979139870), (30, 685397909), (35, 587483922), (42, 489569935), (70, 293741961), (105, 195827974), (151, 136171770), (210, 97913987), (302, 68085885), (453, 45390590), (755, 27234354), (906, 22695295), (1057, 19453110), (1510, 13617177), (2114, 9726555), (2265, 9078118), (3171, 6484370), (4530, 4539059), (5285, 3890622), (6342, 3242185), (10570, 1945311), (15855, 1296874), (31710, 648437)]