20980184

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{70879}}^1$

素因数の和:70922

約数の個数: 16

約数和(自身を含む): 40401600

約数和(自身を除く): 19421416

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 70879, 141758, 283516, 567032, 2622523, 5245046, 10490092, 20980184]

約数ペア:

[(1, 20980184), (2, 10490092), (4, 5245046), (8, 2622523), (37, 567032), (74, 283516), (148, 141758), (296, 70879)]