55818440

素因数分解:

$2^3\times 5^1\times {\mathrm{653}}^1\times {\mathrm{2137}}^1$

素因数の和:2801

約数の個数: 32

約数和(自身を含む): 125842680

約数和(自身を除く): 70024240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 653, 1306, 2137, 2612, 3265, 4274, 5224, 6530, 8548, 10685, 13060, 17096, 21370, 26120, 42740, 85480, 1395461, 2790922, 5581844, 6977305, 11163688, 13954610, 27909220, 55818440]

約数ペア:

[(1, 55818440), (2, 27909220), (4, 13954610), (5, 11163688), (8, 6977305), (10, 5581844), (20, 2790922), (40, 1395461), (653, 85480), (1306, 42740), (2137, 26120), (2612, 21370), (3265, 17096), (4274, 13060), (5224, 10685), (6530, 8548)]