28613900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{997}}^1$

素因数の和:1059

約数の個数: 72

約数和(自身を含む): 72766176

約数和(自身を除く): 44152276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 50, 70, 82, 100, 140, 164, 175, 205, 287, 350, 410, 574, 700, 820, 997, 1025, 1148, 1435, 1994, 2050, 2870, 3988, 4100, 4985, 5740, 6979, 7175, 9970, 13958, 14350, 19940, 24925, 27916, 28700, 34895, 40877, 49850, 69790, 81754, 99700, 139580, 163508, 174475, 204385, 286139, 348950, 408770, 572278, 697900, 817540, 1021925, 1144556, 1430695, 2043850, 2861390, 4087700, 5722780, 7153475, 14306950, 28613900]

約数ペア:

[(1, 28613900), (2, 14306950), (4, 7153475), (5, 5722780), (7, 4087700), (10, 2861390), (14, 2043850), (20, 1430695), (25, 1144556), (28, 1021925), (35, 817540), (41, 697900), (50, 572278), (70, 408770), (82, 348950), (100, 286139), (140, 204385), (164, 174475), (175, 163508), (205, 139580), (287, 99700), (350, 81754), (410, 69790), (574, 49850), (700, 40877), (820, 34895), (997, 28700), (1025, 27916), (1148, 24925), (1435, 19940), (1994, 14350), (2050, 13958), (2870, 9970), (3988, 7175), (4100, 6979), (4985, 5740)]