25613290

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{211}}^1$

素因数の和:478

約数の個数: 32

約数和(自身を含む): 47318400

約数和(自身を除く): 21705110

約数列:

[1, 2, 5, 10, 61, 122, 199, 211, 305, 398, 422, 610, 995, 1055, 1990, 2110, 12139, 12871, 24278, 25742, 41989, 60695, 64355, 83978, 121390, 128710, 209945, 419890, 2561329, 5122658, 12806645, 25613290]

約数ペア:

[(1, 25613290), (2, 12806645), (5, 5122658), (10, 2561329), (61, 419890), (122, 209945), (199, 128710), (211, 121390), (305, 83978), (398, 64355), (422, 60695), (610, 41989), (995, 25742), (1055, 24278), (1990, 12871), (2110, 12139)]