81020350

素因数分解:

$2^1\times 5^2\times {\mathrm{349}}^1\times {\mathrm{4643}}^1$

素因数の和:5004

約数の個数: 24

約数和(自身を含む): 151162200

約数和(自身を除く): 70141850

約数列:

[1, 2, 5, 10, 25, 50, 349, 698, 1745, 3490, 4643, 8725, 9286, 17450, 23215, 46430, 116075, 232150, 1620407, 3240814, 8102035, 16204070, 40510175, 81020350]

約数ペア:

[(1, 81020350), (2, 40510175), (5, 16204070), (10, 8102035), (25, 3240814), (50, 1620407), (349, 232150), (698, 116075), (1745, 46430), (3490, 23215), (4643, 17450), (8725, 9286)]