256220185

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{941}}^1$

素因数の和:1089

約数の個数: 32

約数和(自身を含む): 341832960

約数和(自身を除く): 85612775

約数列:

[1, 5, 13, 59, 65, 71, 295, 355, 767, 923, 941, 3835, 4189, 4615, 4705, 12233, 20945, 54457, 55519, 61165, 66811, 272285, 277595, 334055, 721747, 868543, 3608735, 3941849, 4342715, 19709245, 51244037, 256220185]

約数ペア:

[(1, 256220185), (5, 51244037), (13, 19709245), (59, 4342715), (65, 3941849), (71, 3608735), (295, 868543), (355, 721747), (767, 334055), (923, 277595), (941, 272285), (3835, 66811), (4189, 61165), (4615, 55519), (4705, 54457), (12233, 20945)]