138839660

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1\times {\mathrm{359}}^1$

素因数の和:746

約数の個数: 48

約数和(自身を含む): 298105920

約数和(自身を除く): 159266260

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 317, 359, 610, 634, 718, 1220, 1268, 1436, 1585, 1795, 3170, 3590, 6340, 7180, 19337, 21899, 38674, 43798, 77348, 87596, 96685, 109495, 113803, 193370, 218990, 227606, 386740, 437980, 455212, 569015, 1138030, 2276060, 6941983, 13883966, 27767932, 34709915, 69419830, 138839660]

約数ペア:

[(1, 138839660), (2, 69419830), (4, 34709915), (5, 27767932), (10, 13883966), (20, 6941983), (61, 2276060), (122, 1138030), (244, 569015), (305, 455212), (317, 437980), (359, 386740), (610, 227606), (634, 218990), (718, 193370), (1220, 113803), (1268, 109495), (1436, 96685), (1585, 87596), (1795, 77348), (3170, 43798), (3590, 38674), (6340, 21899), (7180, 19337)]