81892265

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{853}}^1$

素因数の和:1089

約数の個数: 32

約数和(自身を含む): 121664256

約数和(自身を除く): 39771991

約数列:

[1, 5, 7, 13, 35, 65, 91, 211, 455, 853, 1055, 1477, 2743, 4265, 5971, 7385, 11089, 13715, 19201, 29855, 55445, 77623, 96005, 179983, 388115, 899915, 1259881, 2339779, 6299405, 11698895, 16378453, 81892265]

約数ペア:

[(1, 81892265), (5, 16378453), (7, 11698895), (13, 6299405), (35, 2339779), (65, 1259881), (91, 899915), (211, 388115), (455, 179983), (853, 96005), (1055, 77623), (1477, 55445), (2743, 29855), (4265, 19201), (5971, 13715), (7385, 11089)]