311960840

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{24917}}^1$

素因数の和:25241

約数の個数: 32

約数和(自身を含む): 704182680

約数和(自身を除く): 392221840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 6260, 12520, 24917, 49834, 99668, 124585, 199336, 249170, 498340, 996680, 7799021, 15598042, 31196084, 38995105, 62392168, 77990210, 155980420, 311960840]

約数ペア:

[(1, 311960840), (2, 155980420), (4, 77990210), (5, 62392168), (8, 38995105), (10, 31196084), (20, 15598042), (40, 7799021), (313, 996680), (626, 498340), (1252, 249170), (1565, 199336), (2504, 124585), (3130, 99668), (6260, 49834), (12520, 24917)]