212212825

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{31}}^2\times {\mathrm{73}}^1$

素因数の和:167

約数の個数: 54

約数和(自身を含む): 302966286

約数和(自身を除く): 90753461

約数列:

[1, 5, 11, 25, 31, 55, 73, 121, 155, 275, 341, 365, 605, 775, 803, 961, 1705, 1825, 2263, 3025, 3751, 4015, 4805, 8525, 8833, 10571, 11315, 18755, 20075, 24025, 24893, 44165, 52855, 56575, 70153, 93775, 116281, 124465, 220825, 264275, 273823, 350765, 581405, 622325, 771683, 1369115, 1753825, 2907025, 3858415, 6845575, 8488513, 19292075, 42442565, 212212825]

約数ペア:

[(1, 212212825), (5, 42442565), (11, 19292075), (25, 8488513), (31, 6845575), (55, 3858415), (73, 2907025), (121, 1753825), (155, 1369115), (275, 771683), (341, 622325), (365, 581405), (605, 350765), (775, 273823), (803, 264275), (961, 220825), (1705, 124465), (1825, 116281), (2263, 93775), (3025, 70153), (3751, 56575), (4015, 52855), (4805, 44165), (8525, 24893), (8833, 24025), (10571, 20075), (11315, 18755)]