778820998

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{313}}^1\times {\mathrm{599}}^1$

素因数の和:1012

約数の個数: 32

約数和(自身を含む): 1229875200

約数和(自身を除く): 451054202

約数列:

[1, 2, 31, 62, 67, 134, 313, 599, 626, 1198, 2077, 4154, 9703, 18569, 19406, 20971, 37138, 40133, 41942, 80266, 187487, 374974, 650101, 1244123, 1300202, 2488246, 5812097, 11624194, 12561629, 25123258, 389410499, 778820998]

約数ペア:

[(1, 778820998), (2, 389410499), (31, 25123258), (62, 12561629), (67, 11624194), (134, 5812097), (313, 2488246), (599, 1300202), (626, 1244123), (1198, 650101), (2077, 374974), (4154, 187487), (9703, 80266), (18569, 41942), (19406, 40133), (20971, 37138)]