20077715

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 28892160

約数和(自身を除く): 8814445

約数列:

[1, 5, 7, 29, 35, 131, 145, 151, 203, 655, 755, 917, 1015, 1057, 3799, 4379, 4585, 5285, 18995, 19781, 21895, 26593, 30653, 98905, 132965, 138467, 153265, 573649, 692335, 2868245, 4015543, 20077715]

約数ペア:

[(1, 20077715), (5, 4015543), (7, 2868245), (29, 692335), (35, 573649), (131, 153265), (145, 138467), (151, 132965), (203, 98905), (655, 30653), (755, 26593), (917, 21895), (1015, 19781), (1057, 18995), (3799, 5285), (4379, 4585)]