66948500

素因数分解:

$2^2\times 5^3\times {\mathrm{257}}^1\times {\mathrm{521}}^1$

素因数の和:797

約数の個数: 48

約数和(自身を含む): 147066192

約数和(自身を除く): 80117692

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 257, 500, 514, 521, 1028, 1042, 1285, 2084, 2570, 2605, 5140, 5210, 6425, 10420, 12850, 13025, 25700, 26050, 32125, 52100, 64250, 65125, 128500, 130250, 133897, 260500, 267794, 535588, 669485, 1338970, 2677940, 3347425, 6694850, 13389700, 16737125, 33474250, 66948500]

約数ペア:

[(1, 66948500), (2, 33474250), (4, 16737125), (5, 13389700), (10, 6694850), (20, 3347425), (25, 2677940), (50, 1338970), (100, 669485), (125, 535588), (250, 267794), (257, 260500), (500, 133897), (514, 130250), (521, 128500), (1028, 65125), (1042, 64250), (1285, 52100), (2084, 32125), (2570, 26050), (2605, 25700), (5140, 13025), (5210, 12850), (6425, 10420)]