28906240

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2053}}^1$

素因数の和:2085

約数の個数: 72

約数和(自身を含む): 75570768

約数和(自身を除く): 46664528

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2053, 2816, 3520, 4106, 7040, 8212, 10265, 14080, 16424, 20530, 22583, 32848, 41060, 45166, 65696, 82120, 90332, 112915, 131392, 164240, 180664, 225830, 262784, 328480, 361328, 451660, 525568, 656960, 722656, 903320, 1313920, 1445312, 1806640, 2627840, 2890624, 3613280, 5781248, 7226560, 14453120, 28906240]

約数ペア:

[(1, 28906240), (2, 14453120), (4, 7226560), (5, 5781248), (8, 3613280), (10, 2890624), (11, 2627840), (16, 1806640), (20, 1445312), (22, 1313920), (32, 903320), (40, 722656), (44, 656960), (55, 525568), (64, 451660), (80, 361328), (88, 328480), (110, 262784), (128, 225830), (160, 180664), (176, 164240), (220, 131392), (256, 112915), (320, 90332), (352, 82120), (440, 65696), (640, 45166), (704, 41060), (880, 32848), (1280, 22583), (1408, 20530), (1760, 16424), (2053, 14080), (2816, 10265), (3520, 8212), (4106, 7040)]