28091728

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:384

約数の個数: 80

約数和(自身を含む): 67217920

約数和(自身を除く): 39126192

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 43, 56, 76, 86, 112, 133, 152, 172, 266, 301, 304, 307, 344, 532, 602, 614, 688, 817, 1064, 1204, 1228, 1634, 2128, 2149, 2408, 2456, 3268, 4298, 4816, 4912, 5719, 5833, 6536, 8596, 11438, 11666, 13072, 13201, 17192, 22876, 23332, 26402, 34384, 40831, 45752, 46664, 52804, 81662, 91504, 92407, 93328, 105608, 163324, 184814, 211216, 250819, 326648, 369628, 501638, 653296, 739256, 1003276, 1478512, 1755733, 2006552, 3511466, 4013104, 7022932, 14045864, 28091728]

約数ペア:

[(1, 28091728), (2, 14045864), (4, 7022932), (7, 4013104), (8, 3511466), (14, 2006552), (16, 1755733), (19, 1478512), (28, 1003276), (38, 739256), (43, 653296), (56, 501638), (76, 369628), (86, 326648), (112, 250819), (133, 211216), (152, 184814), (172, 163324), (266, 105608), (301, 93328), (304, 92407), (307, 91504), (344, 81662), (532, 52804), (602, 46664), (614, 45752), (688, 40831), (817, 34384), (1064, 26402), (1204, 23332), (1228, 22876), (1634, 17192), (2128, 13201), (2149, 13072), (2408, 11666), (2456, 11438), (3268, 8596), (4298, 6536), (4816, 5833), (4912, 5719)]