20807968

素因数分解:

$2^5\times {\mathrm{79}}^1\times {\mathrm{8231}}^1$

素因数の和:8320

約数の個数: 24

約数和(自身を含む): 41489280

約数和(自身を除く): 20681312

約数列:

[1, 2, 4, 8, 16, 32, 79, 158, 316, 632, 1264, 2528, 8231, 16462, 32924, 65848, 131696, 263392, 650249, 1300498, 2600996, 5201992, 10403984, 20807968]

約数ペア:

[(1, 20807968), (2, 10403984), (4, 5201992), (8, 2600996), (16, 1300498), (32, 650249), (79, 263392), (158, 131696), (316, 65848), (632, 32924), (1264, 16462), (2528, 8231)]