18829280

素因数分解:

$2^5\times 5^1\times {\mathrm{137}}^1\times {\mathrm{859}}^1$

素因数の和:1011

約数の個数: 48

約数和(自身を含む): 44861040

約数和(自身を除く): 26031760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 137, 160, 274, 548, 685, 859, 1096, 1370, 1718, 2192, 2740, 3436, 4295, 4384, 5480, 6872, 8590, 10960, 13744, 17180, 21920, 27488, 34360, 68720, 117683, 137440, 235366, 470732, 588415, 941464, 1176830, 1882928, 2353660, 3765856, 4707320, 9414640, 18829280]

約数ペア:

[(1, 18829280), (2, 9414640), (4, 4707320), (5, 3765856), (8, 2353660), (10, 1882928), (16, 1176830), (20, 941464), (32, 588415), (40, 470732), (80, 235366), (137, 137440), (160, 117683), (274, 68720), (548, 34360), (685, 27488), (859, 21920), (1096, 17180), (1370, 13744), (1718, 10960), (2192, 8590), (2740, 6872), (3436, 5480), (4295, 4384)]