163900778

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:462

約数の個数: 32

約数和(自身を含む): 258614400

約数和(自身を除く): 94713622

約数列:

[1, 2, 43, 61, 86, 122, 157, 199, 314, 398, 2623, 5246, 6751, 8557, 9577, 12139, 13502, 17114, 19154, 24278, 31243, 62486, 411811, 521977, 823622, 1043954, 1343449, 1905823, 2686898, 3811646, 81950389, 163900778]

約数ペア:

[(1, 163900778), (2, 81950389), (43, 3811646), (61, 2686898), (86, 1905823), (122, 1343449), (157, 1043954), (199, 823622), (314, 521977), (398, 411811), (2623, 62486), (5246, 31243), (6751, 24278), (8557, 19154), (9577, 17114), (12139, 13502)]