25409540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97729}}^1$

素因数の和:97751

約数の個数: 24

約数和(自身を含む): 57465240

約数和(自身を除く): 32055700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 97729, 195458, 390916, 488645, 977290, 1270477, 1954580, 2540954, 5081908, 6352385, 12704770, 25409540]

約数ペア:

[(1, 25409540), (2, 12704770), (4, 6352385), (5, 5081908), (10, 2540954), (13, 1954580), (20, 1270477), (26, 977290), (52, 488645), (65, 390916), (130, 195458), (260, 97729)]