51240020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197077}}^1$

素因数の和:197099

約数の個数: 24

約数和(自身を含む): 115881864

約数和(自身を除く): 64641844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 197077, 394154, 788308, 985385, 1970770, 2562001, 3941540, 5124002, 10248004, 12810005, 25620010, 51240020]

約数ペア:

[(1, 51240020), (2, 25620010), (4, 12810005), (5, 10248004), (10, 5124002), (13, 3941540), (20, 2562001), (26, 1970770), (52, 985385), (65, 788308), (130, 394154), (260, 197077)]