28508711728

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{311557}}^1$

素因数の和:311634

約数の個数: 80

約数和(自身を含む): 67994417920

約数和(自身を除く): 39485706192

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 43, 56, 76, 86, 112, 133, 152, 172, 266, 301, 304, 344, 532, 602, 688, 817, 1064, 1204, 1634, 2128, 2408, 3268, 4816, 5719, 6536, 11438, 13072, 22876, 45752, 91504, 311557, 623114, 1246228, 2180899, 2492456, 4361798, 4984912, 5919583, 8723596, 11839166, 13396951, 17447192, 23678332, 26793902, 34894384, 41437081, 47356664, 53587804, 82874162, 93778657, 94713328, 107175608, 165748324, 187557314, 214351216, 254542069, 331496648, 375114628, 509084138, 662993296, 750229256, 1018168276, 1500458512, 1781794483, 2036336552, 3563588966, 4072673104, 7127177932, 14254355864, 28508711728]

約数ペア:

[(1, 28508711728), (2, 14254355864), (4, 7127177932), (7, 4072673104), (8, 3563588966), (14, 2036336552), (16, 1781794483), (19, 1500458512), (28, 1018168276), (38, 750229256), (43, 662993296), (56, 509084138), (76, 375114628), (86, 331496648), (112, 254542069), (133, 214351216), (152, 187557314), (172, 165748324), (266, 107175608), (301, 94713328), (304, 93778657), (344, 82874162), (532, 53587804), (602, 47356664), (688, 41437081), (817, 34894384), (1064, 26793902), (1204, 23678332), (1634, 17447192), (2128, 13396951), (2408, 11839166), (3268, 8723596), (4816, 5919583), (5719, 4984912), (6536, 4361798), (11438, 2492456), (13072, 2180899), (22876, 1246228), (45752, 623114), (91504, 311557)]