389699778

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{881}}^1$

素因数の和:1059

約数の個数: 64

約数和(自身を含む): 864162432

約数和(自身を除く): 474462654

約数列:

[1, 2, 3, 6, 13, 26, 39, 53, 78, 106, 107, 159, 214, 318, 321, 642, 689, 881, 1378, 1391, 1762, 2067, 2643, 2782, 4134, 4173, 5286, 5671, 8346, 11342, 11453, 17013, 22906, 34026, 34359, 46693, 68718, 73723, 93386, 94267, 140079, 147446, 188534, 221169, 280158, 282801, 442338, 565602, 607009, 1214018, 1225471, 1821027, 2450942, 3642054, 3676413, 4996151, 7352826, 9992302, 14988453, 29976906, 64949963, 129899926, 194849889, 389699778]

約数ペア:

[(1, 389699778), (2, 194849889), (3, 129899926), (6, 64949963), (13, 29976906), (26, 14988453), (39, 9992302), (53, 7352826), (78, 4996151), (106, 3676413), (107, 3642054), (159, 2450942), (214, 1821027), (318, 1225471), (321, 1214018), (642, 607009), (689, 565602), (881, 442338), (1378, 282801), (1391, 280158), (1762, 221169), (2067, 188534), (2643, 147446), (2782, 140079), (4134, 94267), (4173, 93386), (5286, 73723), (5671, 68718), (8346, 46693), (11342, 34359), (11453, 34026), (17013, 22906)]