2011456525

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{499}}^1$

素因数の和:758

約数の個数: 48

約数和(自身を含む): 2742880000

約数和(自身を除く): 731423475

約数列:

[1, 5, 13, 25, 65, 79, 157, 325, 395, 499, 785, 1027, 1975, 2041, 2495, 3925, 5135, 6487, 10205, 12403, 12475, 25675, 32435, 39421, 51025, 62015, 78343, 161239, 162175, 197105, 310075, 391715, 512473, 806195, 985525, 1018459, 1958575, 2562365, 4030975, 5092295, 6189097, 12811825, 25461475, 30945485, 80458261, 154727425, 402291305, 2011456525]

約数ペア:

[(1, 2011456525), (5, 402291305), (13, 154727425), (25, 80458261), (65, 30945485), (79, 25461475), (157, 12811825), (325, 6189097), (395, 5092295), (499, 4030975), (785, 2562365), (1027, 1958575), (1975, 1018459), (2041, 985525), (2495, 806195), (3925, 512473), (5135, 391715), (6487, 310075), (10205, 197105), (12403, 162175), (12475, 161239), (25675, 78343), (32435, 62015), (39421, 51025)]