121678660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^3\times {\mathrm{887}}^1$

素因数の和:953

約数の個数: 48

約数和(自身を含む): 270023040

約数和(自身を除く): 148344380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 887, 1444, 1774, 1805, 3548, 3610, 4435, 6859, 7220, 8870, 13718, 16853, 17740, 27436, 33706, 34295, 67412, 68590, 84265, 137180, 168530, 320207, 337060, 640414, 1280828, 1601035, 3202070, 6083933, 6404140, 12167866, 24335732, 30419665, 60839330, 121678660]

約数ペア:

[(1, 121678660), (2, 60839330), (4, 30419665), (5, 24335732), (10, 12167866), (19, 6404140), (20, 6083933), (38, 3202070), (76, 1601035), (95, 1280828), (190, 640414), (361, 337060), (380, 320207), (722, 168530), (887, 137180), (1444, 84265), (1774, 68590), (1805, 67412), (3548, 34295), (3610, 33706), (4435, 27436), (6859, 17740), (7220, 16853), (8870, 13718)]