78381485

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5557}}^1$

素因数の和:5613

約数の個数: 32

約数和(自身を含む): 119519232

約数和(自身を除く): 41137747

約数列:

[1, 5, 7, 13, 31, 35, 65, 91, 155, 217, 403, 455, 1085, 2015, 2821, 5557, 14105, 27785, 38899, 72241, 172267, 194495, 361205, 505687, 861335, 1205869, 2239471, 2528435, 6029345, 11197355, 15676297, 78381485]

約数ペア:

[(1, 78381485), (5, 15676297), (7, 11197355), (13, 6029345), (31, 2528435), (35, 2239471), (65, 1205869), (91, 861335), (155, 505687), (217, 361205), (403, 194495), (455, 172267), (1085, 72241), (2015, 38899), (2821, 27785), (5557, 14105)]