49986500

素因数分解:

$2^2\times 5^3\times {\mathrm{257}}^1\times {\mathrm{389}}^1$

素因数の和:665

約数の個数: 48

約数和(自身を含む): 109877040

約数和(自身を除く): 59890540

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 257, 389, 500, 514, 778, 1028, 1285, 1556, 1945, 2570, 3890, 5140, 6425, 7780, 9725, 12850, 19450, 25700, 32125, 38900, 48625, 64250, 97250, 99973, 128500, 194500, 199946, 399892, 499865, 999730, 1999460, 2499325, 4998650, 9997300, 12496625, 24993250, 49986500]

約数ペア:

[(1, 49986500), (2, 24993250), (4, 12496625), (5, 9997300), (10, 4998650), (20, 2499325), (25, 1999460), (50, 999730), (100, 499865), (125, 399892), (250, 199946), (257, 194500), (389, 128500), (500, 99973), (514, 97250), (778, 64250), (1028, 48625), (1285, 38900), (1556, 32125), (1945, 25700), (2570, 19450), (3890, 12850), (5140, 9725), (6425, 7780)]