81415684

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3559}}^1$

素因数の和:3632

約数の個数: 48

約数和(自身を含む): 175436800

約数和(自身を除く): 94021116

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 43, 76, 86, 133, 172, 266, 301, 532, 602, 817, 1204, 1634, 3268, 3559, 5719, 7118, 11438, 14236, 22876, 24913, 49826, 67621, 99652, 135242, 153037, 270484, 306074, 473347, 612148, 946694, 1071259, 1893388, 2142518, 2907703, 4285036, 5815406, 11630812, 20353921, 40707842, 81415684]

約数ペア:

[(1, 81415684), (2, 40707842), (4, 20353921), (7, 11630812), (14, 5815406), (19, 4285036), (28, 2907703), (38, 2142518), (43, 1893388), (76, 1071259), (86, 946694), (133, 612148), (172, 473347), (266, 306074), (301, 270484), (532, 153037), (602, 135242), (817, 99652), (1204, 67621), (1634, 49826), (3268, 24913), (3559, 22876), (5719, 14236), (7118, 11438)]