81487505

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{1741}}^1$

素因数の和:1817

約数の個数: 32

約数和(自身を含む): 114386688

約数和(自身を除く): 32899183

約数列:

[1, 5, 11, 23, 37, 55, 115, 185, 253, 407, 851, 1265, 1741, 2035, 4255, 8705, 9361, 19151, 40043, 46805, 64417, 95755, 200215, 322085, 440473, 708587, 1481591, 2202365, 3542935, 7407955, 16297501, 81487505]

約数ペア:

[(1, 81487505), (5, 16297501), (11, 7407955), (23, 3542935), (37, 2202365), (55, 1481591), (115, 708587), (185, 440473), (253, 322085), (407, 200215), (851, 95755), (1265, 64417), (1741, 46805), (2035, 40043), (4255, 19151), (8705, 9361)]