164419280

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{16183}}^1$

素因数の和:16323

約数の個数: 40

約数和(自身を含む): 385308672

約数和(自身を除く): 220889392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 10160, 16183, 32366, 64732, 80915, 129464, 161830, 258928, 323660, 647320, 1294640, 2055241, 4110482, 8220964, 10276205, 16441928, 20552410, 32883856, 41104820, 82209640, 164419280]

約数ペア:

[(1, 164419280), (2, 82209640), (4, 41104820), (5, 32883856), (8, 20552410), (10, 16441928), (16, 10276205), (20, 8220964), (40, 4110482), (80, 2055241), (127, 1294640), (254, 647320), (508, 323660), (635, 258928), (1016, 161830), (1270, 129464), (2032, 80915), (2540, 64732), (5080, 32366), (10160, 16183)]