20757304

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{727}}^1$

素因数の和:859

約数の個数: 32

約数和(自身を含む): 40360320

約数和(自身を除く): 19603016

約数列:

[1, 2, 4, 8, 43, 83, 86, 166, 172, 332, 344, 664, 727, 1454, 2908, 3569, 5816, 7138, 14276, 28552, 31261, 60341, 62522, 120682, 125044, 241364, 250088, 482728, 2594663, 5189326, 10378652, 20757304]

約数ペア:

[(1, 20757304), (2, 10378652), (4, 5189326), (8, 2594663), (43, 482728), (83, 250088), (86, 241364), (166, 125044), (172, 120682), (332, 62522), (344, 60341), (664, 31261), (727, 28552), (1454, 14276), (2908, 7138), (3569, 5816)]