20945180

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{45533}}^1$

素因数の和:45565

約数の個数: 24

約数和(自身を含む): 45898272

約数和(自身を除く): 24953092

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 45533, 91066, 182132, 227665, 455330, 910660, 1047259, 2094518, 4189036, 5236295, 10472590, 20945180]

約数ペア:

[(1, 20945180), (2, 10472590), (4, 5236295), (5, 4189036), (10, 2094518), (20, 1047259), (23, 910660), (46, 455330), (92, 227665), (115, 182132), (230, 91066), (460, 45533)]