81606928

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{163}}^1$

素因数の和:296

約数の個数: 80

約数和(自身を含む): 179363520

約数和(自身を除く): 97756592

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 52, 58, 83, 104, 116, 163, 166, 208, 232, 326, 332, 377, 464, 652, 664, 754, 1079, 1304, 1328, 1508, 2119, 2158, 2407, 2608, 3016, 4238, 4316, 4727, 4814, 6032, 8476, 8632, 9454, 9628, 13529, 16952, 17264, 18908, 19256, 27058, 31291, 33904, 37816, 38512, 54116, 61451, 62582, 75632, 108232, 122902, 125164, 175877, 216464, 245804, 250328, 351754, 392341, 491608, 500656, 703508, 784682, 983216, 1407016, 1569364, 2814032, 3138728, 5100433, 6277456, 10200866, 20401732, 40803464, 81606928]

約数ペア:

[(1, 81606928), (2, 40803464), (4, 20401732), (8, 10200866), (13, 6277456), (16, 5100433), (26, 3138728), (29, 2814032), (52, 1569364), (58, 1407016), (83, 983216), (104, 784682), (116, 703508), (163, 500656), (166, 491608), (208, 392341), (232, 351754), (326, 250328), (332, 245804), (377, 216464), (464, 175877), (652, 125164), (664, 122902), (754, 108232), (1079, 75632), (1304, 62582), (1328, 61451), (1508, 54116), (2119, 38512), (2158, 37816), (2407, 33904), (2608, 31291), (3016, 27058), (4238, 19256), (4316, 18908), (4727, 17264), (4814, 16952), (6032, 13529), (8476, 9628), (8632, 9454)]