13447640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1$

素因数の和:392

約数の個数: 64

約数和(自身を含む): 32348160

約数和(自身を除く): 18900520

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 47, 92, 94, 115, 184, 188, 230, 235, 311, 376, 460, 470, 622, 920, 940, 1081, 1244, 1555, 1880, 2162, 2488, 3110, 4324, 5405, 6220, 7153, 8648, 10810, 12440, 14306, 14617, 21620, 28612, 29234, 35765, 43240, 57224, 58468, 71530, 73085, 116936, 143060, 146170, 286120, 292340, 336191, 584680, 672382, 1344764, 1680955, 2689528, 3361910, 6723820, 13447640]

約数ペア:

[(1, 13447640), (2, 6723820), (4, 3361910), (5, 2689528), (8, 1680955), (10, 1344764), (20, 672382), (23, 584680), (40, 336191), (46, 292340), (47, 286120), (92, 146170), (94, 143060), (115, 116936), (184, 73085), (188, 71530), (230, 58468), (235, 57224), (311, 43240), (376, 35765), (460, 29234), (470, 28612), (622, 21620), (920, 14617), (940, 14306), (1081, 12440), (1244, 10810), (1555, 8648), (1880, 7153), (2162, 6220), (2488, 5405), (3110, 4324)]