28428345

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{227}}^1$

素因数の和:283

約数の個数: 72

約数和(自身を含む): 56766528

約数和(自身を除く): 28338183

約数列:

[1, 3, 5, 9, 11, 15, 23, 33, 45, 55, 69, 99, 115, 121, 165, 207, 227, 253, 345, 363, 495, 605, 681, 759, 1035, 1089, 1135, 1265, 1815, 2043, 2277, 2497, 2783, 3405, 3795, 5221, 5445, 7491, 8349, 10215, 11385, 12485, 13915, 15663, 22473, 25047, 26105, 27467, 37455, 41745, 46989, 57431, 78315, 82401, 112365, 125235, 137335, 172293, 234945, 247203, 287155, 412005, 516879, 631741, 861465, 1236015, 1895223, 2584395, 3158705, 5685669, 9476115, 28428345]

約数ペア:

[(1, 28428345), (3, 9476115), (5, 5685669), (9, 3158705), (11, 2584395), (15, 1895223), (23, 1236015), (33, 861465), (45, 631741), (55, 516879), (69, 412005), (99, 287155), (115, 247203), (121, 234945), (165, 172293), (207, 137335), (227, 125235), (253, 112365), (345, 82401), (363, 78315), (495, 57431), (605, 46989), (681, 41745), (759, 37455), (1035, 27467), (1089, 26105), (1135, 25047), (1265, 22473), (1815, 15663), (2043, 13915), (2277, 12485), (2497, 11385), (2783, 10215), (3405, 8349), (3795, 7491), (5221, 5445)]