815720085

素因数分解:

$3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{173}}^1\times {\mathrm{659}}^1$

素因数の和:899

約数の個数: 64

約数和(自身を含む): 1488326400

約数和(自身を除く): 672606315

約数列:

[1, 3, 5, 9, 15, 27, 45, 53, 135, 159, 173, 265, 477, 519, 659, 795, 865, 1431, 1557, 1977, 2385, 2595, 3295, 4671, 5931, 7155, 7785, 9169, 9885, 17793, 23355, 27507, 29655, 34927, 45845, 82521, 88965, 104781, 114007, 137535, 174635, 247563, 314343, 342021, 412605, 523905, 570035, 943029, 1026063, 1237815, 1571715, 1710105, 3078189, 4715145, 5130315, 6042371, 15390945, 18127113, 30211855, 54381339, 90635565, 163144017, 271906695, 815720085]

約数ペア:

[(1, 815720085), (3, 271906695), (5, 163144017), (9, 90635565), (15, 54381339), (27, 30211855), (45, 18127113), (53, 15390945), (135, 6042371), (159, 5130315), (173, 4715145), (265, 3078189), (477, 1710105), (519, 1571715), (659, 1237815), (795, 1026063), (865, 943029), (1431, 570035), (1557, 523905), (1977, 412605), (2385, 342021), (2595, 314343), (3295, 247563), (4671, 174635), (5931, 137535), (7155, 114007), (7785, 104781), (9169, 88965), (9885, 82521), (17793, 45845), (23355, 34927), (27507, 29655)]