2155646975

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{463}}^1$

素因数の和:648

約数の個数: 48

約数和(自身を含む): 2825247744

約数和(自身を除く): 669600769

約数列:

[1, 5, 25, 43, 61, 71, 215, 305, 355, 463, 1075, 1525, 1775, 2315, 2623, 3053, 4331, 11575, 13115, 15265, 19909, 21655, 28243, 32873, 65575, 76325, 99545, 108275, 141215, 164365, 186233, 497725, 706075, 821825, 931165, 1214449, 1413539, 2005253, 4655825, 6072245, 7067695, 10026265, 30361225, 35338475, 50131325, 86225879, 431129395, 2155646975]

約数ペア:

[(1, 2155646975), (5, 431129395), (25, 86225879), (43, 50131325), (61, 35338475), (71, 30361225), (215, 10026265), (305, 7067695), (355, 6072245), (463, 4655825), (1075, 2005253), (1525, 1413539), (1775, 1214449), (2315, 931165), (2623, 821825), (3053, 706075), (4331, 497725), (11575, 186233), (13115, 164365), (15265, 141215), (19909, 108275), (21655, 99545), (28243, 76325), (32873, 65575)]