18280295

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{157}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 25254720

約数和(自身を除く): 6974425

約数列:

[1, 5, 11, 29, 55, 73, 145, 157, 319, 365, 785, 803, 1595, 1727, 2117, 4015, 4553, 8635, 10585, 11461, 22765, 23287, 50083, 57305, 116435, 126071, 250415, 332369, 630355, 1661845, 3656059, 18280295]

約数ペア:

[(1, 18280295), (5, 3656059), (11, 1661845), (29, 630355), (55, 332369), (73, 250415), (145, 126071), (157, 116435), (319, 57305), (365, 50083), (785, 23287), (803, 22765), (1595, 11461), (1727, 10585), (2117, 8635), (4015, 4553)]