161991572

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{199}}^1\times {\mathrm{11971}}^1$

素因数の和:12191

約数の個数: 24

約数和(自身を含む): 301694400

約数和(自身を除く): 139702828

約数列:

[1, 2, 4, 17, 34, 68, 199, 398, 796, 3383, 6766, 11971, 13532, 23942, 47884, 203507, 407014, 814028, 2382229, 4764458, 9528916, 40497893, 80995786, 161991572]

約数ペア:

[(1, 161991572), (2, 80995786), (4, 40497893), (17, 9528916), (34, 4764458), (68, 2382229), (199, 814028), (398, 407014), (796, 203507), (3383, 47884), (6766, 23942), (11971, 13532)]