198317505

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{349}}^1\times {\mathrm{881}}^1$

素因数の和:1281

約数の個数: 32

約数和(自身を含む): 325987200

約数和(自身を除く): 127669695

約数列:

[1, 3, 5, 15, 43, 129, 215, 349, 645, 881, 1047, 1745, 2643, 4405, 5235, 13215, 15007, 37883, 45021, 75035, 113649, 189415, 225105, 307469, 568245, 922407, 1537345, 4612035, 13221167, 39663501, 66105835, 198317505]

約数ペア:

[(1, 198317505), (3, 66105835), (5, 39663501), (15, 13221167), (43, 4612035), (129, 1537345), (215, 922407), (349, 568245), (645, 307469), (881, 225105), (1047, 189415), (1745, 113649), (2643, 75035), (4405, 45021), (5235, 37883), (13215, 15007)]