389601772

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{1979}}^1$

素因数の和:2158

約数の個数: 48

約数和(自身を含む): 798336000

約数和(自身を除く): 408734228

約数列:

[1, 2, 4, 7, 14, 28, 79, 89, 158, 178, 316, 356, 553, 623, 1106, 1246, 1979, 2212, 2492, 3958, 7031, 7916, 13853, 14062, 27706, 28124, 49217, 55412, 98434, 156341, 176131, 196868, 312682, 352262, 625364, 704524, 1094387, 1232917, 2188774, 2465834, 4377548, 4931668, 13914349, 27828698, 55657396, 97400443, 194800886, 389601772]

約数ペア:

[(1, 389601772), (2, 194800886), (4, 97400443), (7, 55657396), (14, 27828698), (28, 13914349), (79, 4931668), (89, 4377548), (158, 2465834), (178, 2188774), (316, 1232917), (356, 1094387), (553, 704524), (623, 625364), (1106, 352262), (1246, 312682), (1979, 196868), (2212, 176131), (2492, 156341), (3958, 98434), (7031, 55412), (7916, 49217), (13853, 28124), (14062, 27706)]