20368768

素因数分解:

$2^7\times 7^1\times {\mathrm{127}}^1\times {\mathrm{179}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 47001600

約数和(自身を除く): 26632832

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 127, 128, 179, 224, 254, 358, 448, 508, 716, 889, 896, 1016, 1253, 1432, 1778, 2032, 2506, 2864, 3556, 4064, 5012, 5728, 7112, 8128, 10024, 11456, 14224, 16256, 20048, 22733, 22912, 28448, 40096, 45466, 56896, 80192, 90932, 113792, 159131, 160384, 181864, 318262, 363728, 636524, 727456, 1273048, 1454912, 2546096, 2909824, 5092192, 10184384, 20368768]

約数ペア:

[(1, 20368768), (2, 10184384), (4, 5092192), (7, 2909824), (8, 2546096), (14, 1454912), (16, 1273048), (28, 727456), (32, 636524), (56, 363728), (64, 318262), (112, 181864), (127, 160384), (128, 159131), (179, 113792), (224, 90932), (254, 80192), (358, 56896), (448, 45466), (508, 40096), (716, 28448), (889, 22912), (896, 22733), (1016, 20048), (1253, 16256), (1432, 14224), (1778, 11456), (2032, 10024), (2506, 8128), (2864, 7112), (3556, 5728), (4064, 5012)]