81828640

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{4027}}^1$

素因数の和:4169

約数の個数: 48

約数和(自身を含む): 194890752

約数和(自身を除く): 113062112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 4027, 4064, 5080, 8054, 10160, 16108, 20135, 20320, 32216, 40270, 64432, 80540, 128864, 161080, 322160, 511429, 644320, 1022858, 2045716, 2557145, 4091432, 5114290, 8182864, 10228580, 16365728, 20457160, 40914320, 81828640]

約数ペア:

[(1, 81828640), (2, 40914320), (4, 20457160), (5, 16365728), (8, 10228580), (10, 8182864), (16, 5114290), (20, 4091432), (32, 2557145), (40, 2045716), (80, 1022858), (127, 644320), (160, 511429), (254, 322160), (508, 161080), (635, 128864), (1016, 80540), (1270, 64432), (2032, 40270), (2540, 32216), (4027, 20320), (4064, 20135), (5080, 16108), (8054, 10160)]