641788780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{937}}^1\times {\mathrm{1489}}^1$

素因数の和:2458

約数の個数: 48

約数和(自身を含む): 1408800960

約数和(自身を除く): 767012180

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 937, 1489, 1874, 2978, 3748, 4685, 5956, 7445, 9370, 14890, 18740, 21551, 29780, 34247, 43102, 68494, 86204, 107755, 136988, 171235, 215510, 342470, 431020, 684940, 1395193, 2790386, 5580772, 6975965, 13951930, 27903860, 32089439, 64178878, 128357756, 160447195, 320894390, 641788780]

約数ペア:

[(1, 641788780), (2, 320894390), (4, 160447195), (5, 128357756), (10, 64178878), (20, 32089439), (23, 27903860), (46, 13951930), (92, 6975965), (115, 5580772), (230, 2790386), (460, 1395193), (937, 684940), (1489, 431020), (1874, 342470), (2978, 215510), (3748, 171235), (4685, 136988), (5956, 107755), (7445, 86204), (9370, 68494), (14890, 43102), (18740, 34247), (21551, 29780)]