388618785

素因数分解:

$3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{281}}^1\times {\mathrm{421}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 686891088

約数和(自身を除く): 298272303

約数列:

[1, 3, 5, 9, 15, 45, 73, 219, 281, 365, 421, 657, 843, 1095, 1263, 1405, 2105, 2529, 3285, 3789, 4215, 6315, 12645, 18945, 20513, 30733, 61539, 92199, 102565, 118301, 153665, 184617, 276597, 307695, 354903, 460995, 591505, 923085, 1064709, 1382985, 1774515, 5323545, 8635973, 25907919, 43179865, 77723757, 129539595, 388618785]

約数ペア:

[(1, 388618785), (3, 129539595), (5, 77723757), (9, 43179865), (15, 25907919), (45, 8635973), (73, 5323545), (219, 1774515), (281, 1382985), (365, 1064709), (421, 923085), (657, 591505), (843, 460995), (1095, 354903), (1263, 307695), (1405, 276597), (2105, 184617), (2529, 153665), (3285, 118301), (3789, 102565), (4215, 92199), (6315, 61539), (12645, 30733), (18945, 20513)]