1215665

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^2$

素因数の和:101

約数の個数: 24

約数和(自身を含む): 1715904

約数和(自身を除く): 500239

約数列:

[1, 5, 11, 23, 31, 55, 115, 155, 253, 341, 713, 961, 1265, 1705, 3565, 4805, 7843, 10571, 22103, 39215, 52855, 110515, 243133, 1215665]

約数ペア:

[(1, 1215665), (5, 243133), (11, 110515), (23, 52855), (31, 39215), (55, 22103), (115, 10571), (155, 7843), (253, 4805), (341, 3565), (713, 1705), (961, 1265)]