208912190

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{199}}^1\times {\mathrm{1721}}^1$

素因数の和:1988

約数の個数: 32

約数和(自身を含む): 384350400

約数和(自身を除く): 175438210

約数列:

[1, 2, 5, 10, 61, 122, 199, 305, 398, 610, 995, 1721, 1990, 3442, 8605, 12139, 17210, 24278, 60695, 104981, 121390, 209962, 342479, 524905, 684958, 1049810, 1712395, 3424790, 20891219, 41782438, 104456095, 208912190]

約数ペア:

[(1, 208912190), (2, 104456095), (5, 41782438), (10, 20891219), (61, 3424790), (122, 1712395), (199, 1049810), (305, 684958), (398, 524905), (610, 342479), (995, 209962), (1721, 121390), (1990, 104981), (3442, 60695), (8605, 24278), (12139, 17210)]