653970875

素因数分解:

$5^3\times {\mathrm{17}}^2\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:513

約数の個数: 48

約数和(自身を含む): 889258656

約数和(自身を除く): 235287781

約数列:

[1, 5, 17, 25, 43, 85, 125, 215, 289, 421, 425, 731, 1075, 1445, 2105, 2125, 3655, 5375, 7157, 7225, 10525, 12427, 18103, 18275, 35785, 36125, 52625, 62135, 90515, 91375, 121669, 178925, 307751, 310675, 452575, 608345, 894625, 1538755, 1553375, 2262875, 3041725, 5231767, 7693775, 15208625, 26158835, 38468875, 130794175, 653970875]

約数ペア:

[(1, 653970875), (5, 130794175), (17, 38468875), (25, 26158835), (43, 15208625), (85, 7693775), (125, 5231767), (215, 3041725), (289, 2262875), (421, 1553375), (425, 1538755), (731, 894625), (1075, 608345), (1445, 452575), (2105, 310675), (2125, 307751), (3655, 178925), (5375, 121669), (7157, 91375), (7225, 90515), (10525, 62135), (12427, 52625), (18103, 36125), (18275, 35785)]