19869280

素因数分解:

$2^5\times 5^1\times {\mathrm{124183}}^1$

素因数の和:124198

約数の個数: 24

約数和(自身を含む): 46941552

約数和(自身を除く): 27072272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 124183, 248366, 496732, 620915, 993464, 1241830, 1986928, 2483660, 3973856, 4967320, 9934640, 19869280]

約数ペア:

[(1, 19869280), (2, 9934640), (4, 4967320), (5, 3973856), (8, 2483660), (10, 1986928), (16, 1241830), (20, 993464), (32, 620915), (40, 496732), (80, 248366), (160, 124183)]