278376445

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{239}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 362050560

約数和(自身を除く): 83674115

約数列:

[1, 5, 17, 71, 85, 193, 239, 355, 965, 1195, 1207, 3281, 4063, 6035, 13703, 16405, 16969, 20315, 46127, 68515, 84845, 230635, 232951, 288473, 784159, 1164755, 1442365, 3275017, 3920795, 16375085, 55675289, 278376445]

約数ペア:

[(1, 278376445), (5, 55675289), (17, 16375085), (71, 3920795), (85, 3275017), (193, 1442365), (239, 1164755), (355, 784159), (965, 288473), (1195, 232951), (1207, 230635), (3281, 84845), (4063, 68515), (6035, 46127), (13703, 20315), (16405, 16969)]