28478240

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{541}}^1$

素因数の和:610

約数の個数: 96

約数和(自身を含む): 78672384

約数和(自身を除く): 50194144

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 47, 56, 70, 80, 94, 112, 140, 160, 188, 224, 235, 280, 329, 376, 470, 541, 560, 658, 752, 940, 1082, 1120, 1316, 1504, 1645, 1880, 2164, 2632, 2705, 3290, 3760, 3787, 4328, 5264, 5410, 6580, 7520, 7574, 8656, 10528, 10820, 13160, 15148, 17312, 18935, 21640, 25427, 26320, 30296, 37870, 43280, 50854, 52640, 60592, 75740, 86560, 101708, 121184, 127135, 151480, 177989, 203416, 254270, 302960, 355978, 406832, 508540, 605920, 711956, 813664, 889945, 1017080, 1423912, 1779890, 2034160, 2847824, 3559780, 4068320, 5695648, 7119560, 14239120, 28478240]

約数ペア:

[(1, 28478240), (2, 14239120), (4, 7119560), (5, 5695648), (7, 4068320), (8, 3559780), (10, 2847824), (14, 2034160), (16, 1779890), (20, 1423912), (28, 1017080), (32, 889945), (35, 813664), (40, 711956), (47, 605920), (56, 508540), (70, 406832), (80, 355978), (94, 302960), (112, 254270), (140, 203416), (160, 177989), (188, 151480), (224, 127135), (235, 121184), (280, 101708), (329, 86560), (376, 75740), (470, 60592), (541, 52640), (560, 50854), (658, 43280), (752, 37870), (940, 30296), (1082, 26320), (1120, 25427), (1316, 21640), (1504, 18935), (1645, 17312), (1880, 15148), (2164, 13160), (2632, 10820), (2705, 10528), (3290, 8656), (3760, 7574), (3787, 7520), (4328, 6580), (5264, 5410)]