128400670

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1\times {\mathrm{1051}}^1$

素因数の和:1720

約数の個数: 32

約数和(自身を含む): 243895680

約数和(自身を除く): 115495010

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 643, 1051, 1286, 2102, 3215, 5255, 6430, 10510, 12217, 19969, 24434, 39938, 61085, 99845, 122170, 199690, 675793, 1351586, 3378965, 6757930, 12840067, 25680134, 64200335, 128400670]

約数ペア:

[(1, 128400670), (2, 64200335), (5, 25680134), (10, 12840067), (19, 6757930), (38, 3378965), (95, 1351586), (190, 675793), (643, 199690), (1051, 122170), (1286, 99845), (2102, 61085), (3215, 39938), (5255, 24434), (6430, 19969), (10510, 12217)]