221244160

素因数分解:

$2^8\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1361}}^1$

素因数の和:1509

約数の個数: 72

約数和(自身を含む): 534514176

約数和(自身を除く): 313270016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 508, 635, 640, 1016, 1270, 1280, 1361, 2032, 2540, 2722, 4064, 5080, 5444, 6805, 8128, 10160, 10888, 13610, 16256, 20320, 21776, 27220, 32512, 40640, 43552, 54440, 81280, 87104, 108880, 162560, 172847, 174208, 217760, 345694, 348416, 435520, 691388, 864235, 871040, 1382776, 1728470, 1742080, 2765552, 3456940, 5531104, 6913880, 11062208, 13827760, 22124416, 27655520, 44248832, 55311040, 110622080, 221244160]

約数ペア:

[(1, 221244160), (2, 110622080), (4, 55311040), (5, 44248832), (8, 27655520), (10, 22124416), (16, 13827760), (20, 11062208), (32, 6913880), (40, 5531104), (64, 3456940), (80, 2765552), (127, 1742080), (128, 1728470), (160, 1382776), (254, 871040), (256, 864235), (320, 691388), (508, 435520), (635, 348416), (640, 345694), (1016, 217760), (1270, 174208), (1280, 172847), (1361, 162560), (2032, 108880), (2540, 87104), (2722, 81280), (4064, 54440), (5080, 43552), (5444, 40640), (6805, 32512), (8128, 27220), (10160, 21776), (10888, 20320), (13610, 16256)]