1278550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{281}}^1$

素因数の和:313

約数の個数: 48

約数和(自身を含む): 2937312

約数和(自身を除く): 1658762

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 65, 70, 91, 130, 175, 182, 281, 325, 350, 455, 562, 650, 910, 1405, 1967, 2275, 2810, 3653, 3934, 4550, 7025, 7306, 9835, 14050, 18265, 19670, 25571, 36530, 49175, 51142, 91325, 98350, 127855, 182650, 255710, 639275, 1278550]

約数ペア:

[(1, 1278550), (2, 639275), (5, 255710), (7, 182650), (10, 127855), (13, 98350), (14, 91325), (25, 51142), (26, 49175), (35, 36530), (50, 25571), (65, 19670), (70, 18265), (91, 14050), (130, 9835), (175, 7306), (182, 7025), (281, 4550), (325, 3934), (350, 3653), (455, 2810), (562, 2275), (650, 1967), (910, 1405)]