399402040

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{525529}}^1$

素因数の和:525559

約数の個数: 32

約数和(自身を含む): 945954000

約数和(自身を除く): 546551960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 525529, 1051058, 2102116, 2627645, 4204232, 5255290, 9985051, 10510580, 19970102, 21021160, 39940204, 49925255, 79880408, 99850510, 199701020, 399402040]

約数ペア:

[(1, 399402040), (2, 199701020), (4, 99850510), (5, 79880408), (8, 49925255), (10, 39940204), (19, 21021160), (20, 19970102), (38, 10510580), (40, 9985051), (76, 5255290), (95, 4204232), (152, 2627645), (190, 2102116), (380, 1051058), (760, 525529)]