248763555

素因数分解:

$3^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1579}}^1$

素因数の和:1985

約数の個数: 40

約数和(自身を含む): 447361200

約数和(自身を除く): 198597645

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 389, 405, 1167, 1579, 1945, 3501, 4737, 5835, 7895, 10503, 14211, 17505, 23685, 31509, 42633, 52515, 71055, 127899, 157545, 213165, 614231, 639495, 1842693, 3071155, 5528079, 9213465, 16584237, 27640395, 49752711, 82921185, 248763555]

約数ペア:

[(1, 248763555), (3, 82921185), (5, 49752711), (9, 27640395), (15, 16584237), (27, 9213465), (45, 5528079), (81, 3071155), (135, 1842693), (389, 639495), (405, 614231), (1167, 213165), (1579, 157545), (1945, 127899), (3501, 71055), (4737, 52515), (5835, 42633), (7895, 31509), (10503, 23685), (14211, 17505)]