238658440

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{9137}}^1$

素因数の和:9801

約数の個数: 32

約数和(自身を含む): 537862680

約数和(自身を除く): 299204240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1306, 2612, 3265, 5224, 6530, 9137, 13060, 18274, 26120, 36548, 45685, 73096, 91370, 182740, 365480, 5966461, 11932922, 23865844, 29832305, 47731688, 59664610, 119329220, 238658440]

約数ペア:

[(1, 238658440), (2, 119329220), (4, 59664610), (5, 47731688), (8, 29832305), (10, 23865844), (20, 11932922), (40, 5966461), (653, 365480), (1306, 182740), (2612, 91370), (3265, 73096), (5224, 45685), (6530, 36548), (9137, 26120), (13060, 18274)]