81488908

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{4451}}^1$

素因数の和:4677

約数の個数: 24

約数和(自身を含む): 149587200

約数和(自身を除く): 68098292

約数列:

[1, 2, 4, 23, 46, 92, 199, 398, 796, 4451, 4577, 8902, 9154, 17804, 18308, 102373, 204746, 409492, 885749, 1771498, 3542996, 20372227, 40744454, 81488908]

約数ペア:

[(1, 81488908), (2, 40744454), (4, 20372227), (23, 3542996), (46, 1771498), (92, 885749), (199, 409492), (398, 204746), (796, 102373), (4451, 18308), (4577, 17804), (8902, 9154)]