65954320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43391}}^1$

素因数の和:43423

約数の個数: 40

約数和(自身を含む): 161418240

約数和(自身を除く): 95463920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 43391, 86782, 173564, 216955, 347128, 433910, 694256, 824429, 867820, 1648858, 1735640, 3297716, 3471280, 4122145, 6595432, 8244290, 13190864, 16488580, 32977160, 65954320]

約数ペア:

[(1, 65954320), (2, 32977160), (4, 16488580), (5, 13190864), (8, 8244290), (10, 6595432), (16, 4122145), (19, 3471280), (20, 3297716), (38, 1735640), (40, 1648858), (76, 867820), (80, 824429), (95, 694256), (152, 433910), (190, 347128), (304, 216955), (380, 173564), (760, 86782), (1520, 43391)]