331397170

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{157}}^1\times {\mathrm{1249}}^1$

素因数の和:1439

約数の個数: 48

約数和(自身を含む): 650565000

約数和(自身を除く): 319167830

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157, 169, 314, 338, 785, 845, 1249, 1570, 1690, 2041, 2498, 4082, 6245, 10205, 12490, 16237, 20410, 26533, 32474, 53066, 81185, 132665, 162370, 196093, 211081, 265330, 392186, 422162, 980465, 1055405, 1960930, 2110810, 2549209, 5098418, 12746045, 25492090, 33139717, 66279434, 165698585, 331397170]

約数ペア:

[(1, 331397170), (2, 165698585), (5, 66279434), (10, 33139717), (13, 25492090), (26, 12746045), (65, 5098418), (130, 2549209), (157, 2110810), (169, 1960930), (314, 1055405), (338, 980465), (785, 422162), (845, 392186), (1249, 265330), (1570, 211081), (1690, 196093), (2041, 162370), (2498, 132665), (4082, 81185), (6245, 53066), (10205, 32474), (12490, 26533), (16237, 20410)]