408904005

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{337}}^1\times {\mathrm{3517}}^1$

素因数の和:3885

約数の個数: 32

約数和(自身を含む): 684912384

約数和(自身を除く): 276008379

約数列:

[1, 3, 5, 15, 23, 69, 115, 337, 345, 1011, 1685, 3517, 5055, 7751, 10551, 17585, 23253, 38755, 52755, 80891, 116265, 242673, 404455, 1185229, 1213365, 3555687, 5926145, 17778435, 27260267, 81780801, 136301335, 408904005]

約数ペア:

[(1, 408904005), (3, 136301335), (5, 81780801), (15, 27260267), (23, 17778435), (69, 5926145), (115, 3555687), (337, 1213365), (345, 1185229), (1011, 404455), (1685, 242673), (3517, 116265), (5055, 80891), (7751, 52755), (10551, 38755), (17585, 23253)]