26101520

素因数分解:

$2^4\times 5^1\times {\mathrm{509}}^1\times {\mathrm{641}}^1$

素因数の和:1163

約数の個数: 40

約数和(自身を含む): 60900120

約数和(自身を除く): 34798600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509, 641, 1018, 1282, 2036, 2545, 2564, 3205, 4072, 5090, 5128, 6410, 8144, 10180, 10256, 12820, 20360, 25640, 40720, 51280, 326269, 652538, 1305076, 1631345, 2610152, 3262690, 5220304, 6525380, 13050760, 26101520]

約数ペア:

[(1, 26101520), (2, 13050760), (4, 6525380), (5, 5220304), (8, 3262690), (10, 2610152), (16, 1631345), (20, 1305076), (40, 652538), (80, 326269), (509, 51280), (641, 40720), (1018, 25640), (1282, 20360), (2036, 12820), (2545, 10256), (2564, 10180), (3205, 8144), (4072, 6410), (5090, 5128)]