30980495

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 47573568

約数和(自身を除く): 16593073

約数列:

[1, 5, 7, 13, 35, 49, 65, 71, 91, 137, 245, 355, 455, 497, 637, 685, 923, 959, 1781, 2485, 3185, 3479, 4615, 4795, 6461, 6713, 8905, 9727, 12467, 17395, 32305, 33565, 45227, 48635, 62335, 68089, 87269, 126451, 226135, 340445, 436345, 476623, 632255, 885157, 2383115, 4425785, 6196099, 30980495]

約数ペア:

[(1, 30980495), (5, 6196099), (7, 4425785), (13, 2383115), (35, 885157), (49, 632255), (65, 476623), (71, 436345), (91, 340445), (137, 226135), (245, 126451), (355, 87269), (455, 68089), (497, 62335), (637, 48635), (685, 45227), (923, 33565), (959, 32305), (1781, 17395), (2485, 12467), (3185, 9727), (3479, 8905), (4615, 6713), (4795, 6461)]