81173404

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{120079}}^1$

素因数の和:120109

約数の個数: 18

約数和(自身を含む): 153822480

約数和(自身を除く): 72649076

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 120079, 240158, 480316, 1561027, 3122054, 6244108, 20293351, 40586702, 81173404]

約数ペア:

[(1, 81173404), (2, 40586702), (4, 20293351), (13, 6244108), (26, 3122054), (52, 1561027), (169, 480316), (338, 240158), (676, 120079)]