1528883920

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{444443}}^1$

素因数の和:444499

約数の個数: 40

約数和(自身を含む): 3637329696

約数和(自身を除く): 2108445776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 444443, 888886, 1777772, 2222215, 3555544, 4444430, 7111088, 8888860, 17777720, 19111049, 35555440, 38222098, 76444196, 95555245, 152888392, 191110490, 305776784, 382220980, 764441960, 1528883920]

約数ペア:

[(1, 1528883920), (2, 764441960), (4, 382220980), (5, 305776784), (8, 191110490), (10, 152888392), (16, 95555245), (20, 76444196), (40, 38222098), (43, 35555440), (80, 19111049), (86, 17777720), (172, 8888860), (215, 7111088), (344, 4444430), (430, 3555544), (688, 2222215), (860, 1777772), (1720, 888886), (3440, 444443)]