25634960

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157}}^2$

素因数の和:340

約数の個数: 60

約数和(自身を含む): 64597428

約数和(自身を除く): 38962468

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 157, 208, 260, 314, 520, 628, 785, 1040, 1256, 1570, 2041, 2512, 3140, 4082, 6280, 8164, 10205, 12560, 16328, 20410, 24649, 32656, 40820, 49298, 81640, 98596, 123245, 163280, 197192, 246490, 320437, 394384, 492980, 640874, 985960, 1281748, 1602185, 1971920, 2563496, 3204370, 5126992, 6408740, 12817480, 25634960]

約数ペア:

[(1, 25634960), (2, 12817480), (4, 6408740), (5, 5126992), (8, 3204370), (10, 2563496), (13, 1971920), (16, 1602185), (20, 1281748), (26, 985960), (40, 640874), (52, 492980), (65, 394384), (80, 320437), (104, 246490), (130, 197192), (157, 163280), (208, 123245), (260, 98596), (314, 81640), (520, 49298), (628, 40820), (785, 32656), (1040, 24649), (1256, 20410), (1570, 16328), (2041, 12560), (2512, 10205), (3140, 8164), (4082, 6280)]