20324395

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{2351}}^1$

素因数の和:2395

約数の個数: 32

約数和(自身を含む): 31610880

約数和(自身を除く): 11286485

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 455, 665, 1235, 1729, 2351, 8645, 11755, 16457, 30563, 44669, 82285, 152815, 213941, 223345, 312683, 580697, 1069705, 1563415, 2903485, 4064879, 20324395]

約数ペア:

[(1, 20324395), (5, 4064879), (7, 2903485), (13, 1563415), (19, 1069705), (35, 580697), (65, 312683), (91, 223345), (95, 213941), (133, 152815), (247, 82285), (455, 44669), (665, 30563), (1235, 16457), (1729, 11755), (2351, 8645)]