388660780

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1\times {\mathrm{1709}}^1$

素因数の和:1938

約数の個数: 48

約数和(自身を含む): 832537440

約数和(自身を除く): 443876660

約数列:

[1, 2, 4, 5, 10, 20, 83, 137, 166, 274, 332, 415, 548, 685, 830, 1370, 1660, 1709, 2740, 3418, 6836, 8545, 11371, 17090, 22742, 34180, 45484, 56855, 113710, 141847, 227420, 234133, 283694, 468266, 567388, 709235, 936532, 1170665, 1418470, 2341330, 2836940, 4682660, 19433039, 38866078, 77732156, 97165195, 194330390, 388660780]

約数ペア:

[(1, 388660780), (2, 194330390), (4, 97165195), (5, 77732156), (10, 38866078), (20, 19433039), (83, 4682660), (137, 2836940), (166, 2341330), (274, 1418470), (332, 1170665), (415, 936532), (548, 709235), (685, 567388), (830, 468266), (1370, 283694), (1660, 234133), (1709, 227420), (2740, 141847), (3418, 113710), (6836, 56855), (8545, 45484), (11371, 34180), (17090, 22742)]