28678840

素因数分解:

$2^3\times 5^1\times {\mathrm{293}}^1\times {\mathrm{2447}}^1$

素因数の和:2751

約数の個数: 32

約数和(自身を含む): 64774080

約数和(自身を除く): 36095240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 293, 586, 1172, 1465, 2344, 2447, 2930, 4894, 5860, 9788, 11720, 12235, 19576, 24470, 48940, 97880, 716971, 1433942, 2867884, 3584855, 5735768, 7169710, 14339420, 28678840]

約数ペア:

[(1, 28678840), (2, 14339420), (4, 7169710), (5, 5735768), (8, 3584855), (10, 2867884), (20, 1433942), (40, 716971), (293, 97880), (586, 48940), (1172, 24470), (1465, 19576), (2344, 12235), (2447, 11720), (2930, 9788), (4894, 5860)]