28178180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{179}}^1\times {\mathrm{463}}^1$

素因数の和:668

約数の個数: 48

約数和(自身を含む): 63141120

約数和(自身を除く): 34962940

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 179, 340, 358, 463, 716, 895, 926, 1790, 1852, 2315, 3043, 3580, 4630, 6086, 7871, 9260, 12172, 15215, 15742, 30430, 31484, 39355, 60860, 78710, 82877, 157420, 165754, 331508, 414385, 828770, 1408909, 1657540, 2817818, 5635636, 7044545, 14089090, 28178180]

約数ペア:

[(1, 28178180), (2, 14089090), (4, 7044545), (5, 5635636), (10, 2817818), (17, 1657540), (20, 1408909), (34, 828770), (68, 414385), (85, 331508), (170, 165754), (179, 157420), (340, 82877), (358, 78710), (463, 60860), (716, 39355), (895, 31484), (926, 30430), (1790, 15742), (1852, 15215), (2315, 12172), (3043, 9260), (3580, 7871), (4630, 6086)]