77216500

素因数分解:

$2^2\times 5^3\times {\mathrm{389}}^1\times {\mathrm{397}}^1$

素因数の和:805

約数の個数: 48

約数和(自身を含む): 169500240

約数和(自身を除く): 92283740

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 389, 397, 500, 778, 794, 1556, 1588, 1945, 1985, 3890, 3970, 7780, 7940, 9725, 9925, 19450, 19850, 38900, 39700, 48625, 49625, 97250, 99250, 154433, 194500, 198500, 308866, 617732, 772165, 1544330, 3088660, 3860825, 7721650, 15443300, 19304125, 38608250, 77216500]

約数ペア:

[(1, 77216500), (2, 38608250), (4, 19304125), (5, 15443300), (10, 7721650), (20, 3860825), (25, 3088660), (50, 1544330), (100, 772165), (125, 617732), (250, 308866), (389, 198500), (397, 194500), (500, 154433), (778, 99250), (794, 97250), (1556, 49625), (1588, 48625), (1945, 39700), (1985, 38900), (3890, 19850), (3970, 19450), (7780, 9925), (7940, 9725)]