320475560

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{8101}}^1$

素因数の和:8178

約数の個数: 64

約数和(自身を含む): 770014080

約数和(自身を除く): 449538520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 43, 46, 86, 92, 115, 172, 184, 215, 230, 344, 430, 460, 860, 920, 989, 1720, 1978, 3956, 4945, 7912, 8101, 9890, 16202, 19780, 32404, 39560, 40505, 64808, 81010, 162020, 186323, 324040, 348343, 372646, 696686, 745292, 931615, 1393372, 1490584, 1741715, 1863230, 2786744, 3483430, 3726460, 6966860, 7452920, 8011889, 13933720, 16023778, 32047556, 40059445, 64095112, 80118890, 160237780, 320475560]

約数ペア:

[(1, 320475560), (2, 160237780), (4, 80118890), (5, 64095112), (8, 40059445), (10, 32047556), (20, 16023778), (23, 13933720), (40, 8011889), (43, 7452920), (46, 6966860), (86, 3726460), (92, 3483430), (115, 2786744), (172, 1863230), (184, 1741715), (215, 1490584), (230, 1393372), (344, 931615), (430, 745292), (460, 696686), (860, 372646), (920, 348343), (989, 324040), (1720, 186323), (1978, 162020), (3956, 81010), (4945, 64808), (7912, 40505), (8101, 39560), (9890, 32404), (16202, 19780)]