1280971055

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{21491}}^1$

素因数の和:21647

約数の個数: 32

約数和(自身を含む): 1906426368

約数和(自身を除く): 625455313

約数列:

[1, 5, 7, 13, 35, 65, 91, 131, 455, 655, 917, 1703, 4585, 8515, 11921, 21491, 59605, 107455, 150437, 279383, 752185, 1396915, 1955681, 2815321, 9778405, 14076605, 19707247, 36599173, 98536235, 182995865, 256194211, 1280971055]

約数ペア:

[(1, 1280971055), (5, 256194211), (7, 182995865), (13, 98536235), (35, 36599173), (65, 19707247), (91, 14076605), (131, 9778405), (455, 2815321), (655, 1955681), (917, 1396915), (1703, 752185), (4585, 279383), (8515, 150437), (11921, 107455), (21491, 59605)]