28203040

素因数分解:

$2^5\times 5^1\times {\mathrm{359}}^1\times {\mathrm{491}}^1$

素因数の和:865

約数の個数: 48

約数和(自身を含む): 66951360

約数和(自身を除く): 38748320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 359, 491, 718, 982, 1436, 1795, 1964, 2455, 2872, 3590, 3928, 4910, 5744, 7180, 7856, 9820, 11488, 14360, 15712, 19640, 28720, 39280, 57440, 78560, 176269, 352538, 705076, 881345, 1410152, 1762690, 2820304, 3525380, 5640608, 7050760, 14101520, 28203040]

約数ペア:

[(1, 28203040), (2, 14101520), (4, 7050760), (5, 5640608), (8, 3525380), (10, 2820304), (16, 1762690), (20, 1410152), (32, 881345), (40, 705076), (80, 352538), (160, 176269), (359, 78560), (491, 57440), (718, 39280), (982, 28720), (1436, 19640), (1795, 15712), (1964, 14360), (2455, 11488), (2872, 9820), (3590, 7856), (3928, 7180), (4910, 5744)]