28811276

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:402

約数の個数: 48

約数和(自身を含む): 57163008

約数和(自身を除く): 28351732

約数列:

[1, 2, 4, 13, 26, 31, 52, 61, 62, 122, 124, 244, 293, 403, 586, 793, 806, 1172, 1586, 1612, 1891, 3172, 3782, 3809, 7564, 7618, 9083, 15236, 17873, 18166, 24583, 35746, 36332, 49166, 71492, 98332, 118079, 232349, 236158, 464698, 472316, 554063, 929396, 1108126, 2216252, 7202819, 14405638, 28811276]

約数ペア:

[(1, 28811276), (2, 14405638), (4, 7202819), (13, 2216252), (26, 1108126), (31, 929396), (52, 554063), (61, 472316), (62, 464698), (122, 236158), (124, 232349), (244, 118079), (293, 98332), (403, 71492), (586, 49166), (793, 36332), (806, 35746), (1172, 24583), (1586, 18166), (1612, 17873), (1891, 15236), (3172, 9083), (3782, 7618), (3809, 7564)]