1620418160

素因数分解:

$2^4\times 5^1\times {\mathrm{20255227}}^1$

素因数の和:20255240

約数の個数: 20

約数和(自身を含む): 3767472408

約数和(自身を除く): 2147054248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 20255227, 40510454, 81020908, 101276135, 162041816, 202552270, 324083632, 405104540, 810209080, 1620418160]

約数ペア:

[(1, 1620418160), (2, 810209080), (4, 405104540), (5, 324083632), (8, 202552270), (10, 162041816), (16, 101276135), (20, 81020908), (40, 40510454), (80, 20255227)]