205123615

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{829}}^1$

素因数の和:963

約数の個数: 32

約数和(自身を含む): 271071360

約数和(自身を除く): 65947745

約数列:

[1, 5, 17, 41, 71, 85, 205, 355, 697, 829, 1207, 2911, 3485, 4145, 6035, 14093, 14555, 33989, 49487, 58859, 70465, 169945, 247435, 294295, 577813, 1000603, 2413219, 2889065, 5003015, 12066095, 41024723, 205123615]

約数ペア:

[(1, 205123615), (5, 41024723), (17, 12066095), (41, 5003015), (71, 2889065), (85, 2413219), (205, 1000603), (355, 577813), (697, 294295), (829, 247435), (1207, 169945), (2911, 70465), (3485, 58859), (4145, 49487), (6035, 33989), (14093, 14555)]