15780645

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1$

素因数の和:306

約数の個数: 48

約数和(自身を含む): 29053440

約数和(自身を除く): 13272795

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 79, 115, 193, 207, 237, 345, 395, 579, 711, 965, 1035, 1185, 1737, 1817, 2895, 3555, 4439, 5451, 8685, 9085, 13317, 15247, 16353, 22195, 27255, 39951, 45741, 66585, 76235, 81765, 137223, 199755, 228705, 350681, 686115, 1052043, 1753405, 3156129, 5260215, 15780645]

約数ペア:

[(1, 15780645), (3, 5260215), (5, 3156129), (9, 1753405), (15, 1052043), (23, 686115), (45, 350681), (69, 228705), (79, 199755), (115, 137223), (193, 81765), (207, 76235), (237, 66585), (345, 45741), (395, 39951), (579, 27255), (711, 22195), (965, 16353), (1035, 15247), (1185, 13317), (1737, 9085), (1817, 8685), (2895, 5451), (3555, 4439)]