256408065

素因数分解:

$3^3\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{1553}}^1$

素因数の和:2790

約数の個数: 32

約数和(自身を含む): 456503040

約数和(自身を除く): 200094975

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1223, 1553, 3669, 4659, 6115, 7765, 11007, 13977, 18345, 23295, 33021, 41931, 55035, 69885, 165105, 209655, 1899319, 5697957, 9496595, 17093871, 28489785, 51281613, 85469355, 256408065]

約数ペア:

[(1, 256408065), (3, 85469355), (5, 51281613), (9, 28489785), (15, 17093871), (27, 9496595), (45, 5697957), (135, 1899319), (1223, 209655), (1553, 165105), (3669, 69885), (4659, 55035), (6115, 41931), (7765, 33021), (11007, 23295), (13977, 18345)]