205472020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{790277}}^1$

素因数の和:790299

約数の個数: 24

約数和(自身を含む): 464683464

約数和(自身を除く): 259211444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 790277, 1580554, 3161108, 3951385, 7902770, 10273601, 15805540, 20547202, 41094404, 51368005, 102736010, 205472020]

約数ペア:

[(1, 205472020), (2, 102736010), (4, 51368005), (5, 41094404), (10, 20547202), (13, 15805540), (20, 10273601), (26, 7902770), (52, 3951385), (65, 3161108), (130, 1580554), (260, 790277)]