321571040

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{287117}}^1$

素因数の和:287139

約数の個数: 48

約数和(自身を含む): 868244832

約数和(自身を除く): 546673792

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 287117, 574234, 1148468, 1435585, 2009819, 2296936, 2871170, 4019638, 4593872, 5742340, 8039276, 9187744, 10049095, 11484680, 16078552, 20098190, 22969360, 32157104, 40196380, 45938720, 64314208, 80392760, 160785520, 321571040]

約数ペア:

[(1, 321571040), (2, 160785520), (4, 80392760), (5, 64314208), (7, 45938720), (8, 40196380), (10, 32157104), (14, 22969360), (16, 20098190), (20, 16078552), (28, 11484680), (32, 10049095), (35, 9187744), (40, 8039276), (56, 5742340), (70, 4593872), (80, 4019638), (112, 2871170), (140, 2296936), (160, 2009819), (224, 1435585), (280, 1148468), (560, 574234), (1120, 287117)]