399855

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:111

約数の個数: 32

約数和(自身を含む): 714240

約数和(自身を除く): 314385

約数列:

[1, 3, 5, 15, 19, 23, 57, 61, 69, 95, 115, 183, 285, 305, 345, 437, 915, 1159, 1311, 1403, 2185, 3477, 4209, 5795, 6555, 7015, 17385, 21045, 26657, 79971, 133285, 399855]

約数ペア:

[(1, 399855), (3, 133285), (5, 79971), (15, 26657), (19, 21045), (23, 17385), (57, 7015), (61, 6555), (69, 5795), (95, 4209), (115, 3477), (183, 2185), (285, 1403), (305, 1311), (345, 1159), (437, 915)]