520020865

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{1783}}^1$

素因数の和:2449

約数の個数: 32

約数和(自身を含む): 769660416

約数和(自身を除く): 249639551

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 641, 1783, 3205, 4487, 8333, 8915, 12481, 22435, 23179, 41665, 58331, 62405, 115895, 162253, 291655, 811265, 1142903, 5714515, 8000321, 14857739, 40001605, 74288695, 104004173, 520020865]

約数ペア:

[(1, 520020865), (5, 104004173), (7, 74288695), (13, 40001605), (35, 14857739), (65, 8000321), (91, 5714515), (455, 1142903), (641, 811265), (1783, 291655), (3205, 162253), (4487, 115895), (8333, 62405), (8915, 58331), (12481, 41665), (22435, 23179)]