20275328

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 43182720

約数和(自身を除く): 22907392

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 71, 92, 97, 128, 142, 184, 194, 284, 368, 388, 568, 736, 776, 1136, 1472, 1552, 1633, 2231, 2272, 2944, 3104, 3266, 4462, 4544, 6208, 6532, 6887, 8924, 9088, 12416, 13064, 13774, 17848, 26128, 27548, 35696, 52256, 55096, 71392, 104512, 110192, 142784, 158401, 209024, 220384, 285568, 316802, 440768, 633604, 881536, 1267208, 2534416, 5068832, 10137664, 20275328]

約数ペア:

[(1, 20275328), (2, 10137664), (4, 5068832), (8, 2534416), (16, 1267208), (23, 881536), (32, 633604), (46, 440768), (64, 316802), (71, 285568), (92, 220384), (97, 209024), (128, 158401), (142, 142784), (184, 110192), (194, 104512), (284, 71392), (368, 55096), (388, 52256), (568, 35696), (736, 27548), (776, 26128), (1136, 17848), (1472, 13774), (1552, 13064), (1633, 12416), (2231, 9088), (2272, 8924), (2944, 6887), (3104, 6532), (3266, 6208), (4462, 4544)]