26980720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{25943}}^1$

素因数の和:25969

約数の個数: 40

約数和(自身を含む): 67558176

約数和(自身を除く): 40577456

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 25943, 51886, 103772, 129715, 207544, 259430, 337259, 415088, 518860, 674518, 1037720, 1349036, 1686295, 2075440, 2698072, 3372590, 5396144, 6745180, 13490360, 26980720]

約数ペア:

[(1, 26980720), (2, 13490360), (4, 6745180), (5, 5396144), (8, 3372590), (10, 2698072), (13, 2075440), (16, 1686295), (20, 1349036), (26, 1037720), (40, 674518), (52, 518860), (65, 415088), (80, 337259), (104, 259430), (130, 207544), (208, 129715), (260, 103772), (520, 51886), (1040, 25943)]