389968995

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{2081}}^1$

素因数の和:2164

約数の個数: 48

約数和(自身を含む): 694655136

約数和(自身を除く): 304686141

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 93, 155, 195, 403, 465, 961, 1209, 2015, 2081, 2883, 4805, 6045, 6243, 10405, 12493, 14415, 27053, 31215, 37479, 62465, 64511, 81159, 135265, 187395, 193533, 322555, 405795, 838643, 967665, 1999841, 2515929, 4193215, 5999523, 9999205, 12579645, 25997933, 29997615, 77993799, 129989665, 389968995]

約数ペア:

[(1, 389968995), (3, 129989665), (5, 77993799), (13, 29997615), (15, 25997933), (31, 12579645), (39, 9999205), (65, 5999523), (93, 4193215), (155, 2515929), (195, 1999841), (403, 967665), (465, 838643), (961, 405795), (1209, 322555), (2015, 193533), (2081, 187395), (2883, 135265), (4805, 81159), (6045, 64511), (6243, 62465), (10405, 37479), (12493, 31215), (14415, 27053)]