20808429424

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68448781}}^1$

素因数の和:68448808

約数の個数: 20

約数和(自身を含む): 42438244840

約数和(自身を除く): 21629815416

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68448781, 136897562, 273795124, 547590248, 1095180496, 1300526839, 2601053678, 5202107356, 10404214712, 20808429424]

約数ペア:

[(1, 20808429424), (2, 10404214712), (4, 5202107356), (8, 2601053678), (16, 1300526839), (19, 1095180496), (38, 547590248), (76, 273795124), (152, 136897562), (304, 68448781)]