28487680

素因数分解:

$2^{12}\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1$

素因数の和:149

約数の個数: 104

約数和(自身を含む): 74308752

約数和(自身を除く): 45821072

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 107, 128, 130, 160, 208, 214, 256, 260, 320, 416, 428, 512, 520, 535, 640, 832, 856, 1024, 1040, 1070, 1280, 1391, 1664, 1712, 2048, 2080, 2140, 2560, 2782, 3328, 3424, 4096, 4160, 4280, 5120, 5564, 6656, 6848, 6955, 8320, 8560, 10240, 11128, 13312, 13696, 13910, 16640, 17120, 20480, 22256, 26624, 27392, 27820, 33280, 34240, 44512, 53248, 54784, 55640, 66560, 68480, 89024, 109568, 111280, 133120, 136960, 178048, 219136, 222560, 266240, 273920, 356096, 438272, 445120, 547840, 712192, 890240, 1095680, 1424384, 1780480, 2191360, 2848768, 3560960, 5697536, 7121920, 14243840, 28487680]

約数ペア:

[(1, 28487680), (2, 14243840), (4, 7121920), (5, 5697536), (8, 3560960), (10, 2848768), (13, 2191360), (16, 1780480), (20, 1424384), (26, 1095680), (32, 890240), (40, 712192), (52, 547840), (64, 445120), (65, 438272), (80, 356096), (104, 273920), (107, 266240), (128, 222560), (130, 219136), (160, 178048), (208, 136960), (214, 133120), (256, 111280), (260, 109568), (320, 89024), (416, 68480), (428, 66560), (512, 55640), (520, 54784), (535, 53248), (640, 44512), (832, 34240), (856, 33280), (1024, 27820), (1040, 27392), (1070, 26624), (1280, 22256), (1391, 20480), (1664, 17120), (1712, 16640), (2048, 13910), (2080, 13696), (2140, 13312), (2560, 11128), (2782, 10240), (3328, 8560), (3424, 8320), (4096, 6955), (4160, 6848), (4280, 6656), (5120, 5564)]