645160178

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{619}}^1\times {\mathrm{40087}}^1$

素因数の和:40721

約数の個数: 16

約数和(自身を含む): 1043891520

約数和(自身を除く): 398731342

約数列:

[1, 2, 13, 26, 619, 1238, 8047, 16094, 40087, 80174, 521131, 1042262, 24813853, 49627706, 322580089, 645160178]

約数ペア:

[(1, 645160178), (2, 322580089), (13, 49627706), (26, 24813853), (619, 1042262), (1238, 521131), (8047, 80174), (16094, 40087)]