19641280

素因数分解:

$2^6\times 5^1\times {\mathrm{61379}}^1$

素因数の和:61396

約数の個数: 28

約数和(自身を含む): 46771560

約数和(自身を除く): 27130280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 61379, 122758, 245516, 306895, 491032, 613790, 982064, 1227580, 1964128, 2455160, 3928256, 4910320, 9820640, 19641280]

約数ペア:

[(1, 19641280), (2, 9820640), (4, 4910320), (5, 3928256), (8, 2455160), (10, 1964128), (16, 1227580), (20, 982064), (32, 613790), (40, 491032), (64, 306895), (80, 245516), (160, 122758), (320, 61379)]