28367840

素因数分解:

$2^5\times 5^1\times {\mathrm{107}}^1\times {\mathrm{1657}}^1$

素因数の和:1779

約数の個数: 48

約数和(自身を含む): 67686192

約数和(自身を除く): 39318352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 107, 160, 214, 428, 535, 856, 1070, 1657, 1712, 2140, 3314, 3424, 4280, 6628, 8285, 8560, 13256, 16570, 17120, 26512, 33140, 53024, 66280, 132560, 177299, 265120, 354598, 709196, 886495, 1418392, 1772990, 2836784, 3545980, 5673568, 7091960, 14183920, 28367840]

約数ペア:

[(1, 28367840), (2, 14183920), (4, 7091960), (5, 5673568), (8, 3545980), (10, 2836784), (16, 1772990), (20, 1418392), (32, 886495), (40, 709196), (80, 354598), (107, 265120), (160, 177299), (214, 132560), (428, 66280), (535, 53024), (856, 33140), (1070, 26512), (1657, 17120), (1712, 16570), (2140, 13256), (3314, 8560), (3424, 8285), (4280, 6628)]