20098780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{3361}}^1$

素因数の和:3406

約数の個数: 48

約数和(自身を含む): 47444544

約数和(自身を除く): 27345764

約数列:

[1, 2, 4, 5, 10, 13, 20, 23, 26, 46, 52, 65, 92, 115, 130, 230, 260, 299, 460, 598, 1196, 1495, 2990, 3361, 5980, 6722, 13444, 16805, 33610, 43693, 67220, 77303, 87386, 154606, 174772, 218465, 309212, 386515, 436930, 773030, 873860, 1004939, 1546060, 2009878, 4019756, 5024695, 10049390, 20098780]

約数ペア:

[(1, 20098780), (2, 10049390), (4, 5024695), (5, 4019756), (10, 2009878), (13, 1546060), (20, 1004939), (23, 873860), (26, 773030), (46, 436930), (52, 386515), (65, 309212), (92, 218465), (115, 174772), (130, 154606), (230, 87386), (260, 77303), (299, 67220), (460, 43693), (598, 33610), (1196, 16805), (1495, 13444), (2990, 6722), (3361, 5980)]