6404440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{257}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 16718400

約数和(自身を除く): 10313960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 257, 280, 356, 445, 514, 623, 712, 890, 1028, 1246, 1285, 1780, 1799, 2056, 2492, 2570, 3115, 3560, 3598, 4984, 5140, 6230, 7196, 8995, 10280, 12460, 14392, 17990, 22873, 24920, 35980, 45746, 71960, 91492, 114365, 160111, 182984, 228730, 320222, 457460, 640444, 800555, 914920, 1280888, 1601110, 3202220, 6404440]

約数ペア:

[(1, 6404440), (2, 3202220), (4, 1601110), (5, 1280888), (7, 914920), (8, 800555), (10, 640444), (14, 457460), (20, 320222), (28, 228730), (35, 182984), (40, 160111), (56, 114365), (70, 91492), (89, 71960), (140, 45746), (178, 35980), (257, 24920), (280, 22873), (356, 17990), (445, 14392), (514, 12460), (623, 10280), (712, 8995), (890, 7196), (1028, 6230), (1246, 5140), (1285, 4984), (1780, 3598), (1799, 3560), (2056, 3115), (2492, 2570)]