81841705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{2087}}^1$

素因数の和:2157

約数の個数: 32

約数和(自身を含む): 115458048

約数和(自身を除く): 33616343

約数列:

[1, 5, 11, 23, 31, 55, 115, 155, 253, 341, 713, 1265, 1705, 2087, 3565, 7843, 10435, 22957, 39215, 48001, 64697, 114785, 240005, 323485, 528011, 711667, 1488031, 2640055, 3558335, 7440155, 16368341, 81841705]

約数ペア:

[(1, 81841705), (5, 16368341), (11, 7440155), (23, 3558335), (31, 2640055), (55, 1488031), (115, 711667), (155, 528011), (253, 323485), (341, 240005), (713, 114785), (1265, 64697), (1705, 48001), (2087, 39215), (3565, 22957), (7843, 10435)]