389895

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:175

約数の個数: 32

約数和(自身を含む): 725760

約数和(自身を除く): 335865

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 139, 165, 187, 255, 417, 561, 695, 935, 1529, 2085, 2363, 2805, 4587, 7089, 7645, 11815, 22935, 25993, 35445, 77979, 129965, 389895]

約数ペア:

[(1, 389895), (3, 129965), (5, 77979), (11, 35445), (15, 25993), (17, 22935), (33, 11815), (51, 7645), (55, 7089), (85, 4587), (139, 2805), (165, 2363), (187, 2085), (255, 1529), (417, 935), (561, 695)]