71312020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{274277}}^1$

素因数の和:274299

約数の個数: 24

約数和(自身を含む): 161275464

約数和(自身を除く): 89963444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 274277, 548554, 1097108, 1371385, 2742770, 3565601, 5485540, 7131202, 14262404, 17828005, 35656010, 71312020]

約数ペア:

[(1, 71312020), (2, 35656010), (4, 17828005), (5, 14262404), (10, 7131202), (13, 5485540), (20, 3565601), (26, 2742770), (52, 1371385), (65, 1097108), (130, 548554), (260, 274277)]