51778805

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{4003}}^1$

素因数の和:4220

約数の個数: 16

約数和(自身を含む): 67267200

約数和(自身を除く): 15488395

約数列:

[1, 5, 13, 65, 199, 995, 2587, 4003, 12935, 20015, 52039, 260195, 796597, 3982985, 10355761, 51778805]

約数ペア:

[(1, 51778805), (5, 10355761), (13, 3982985), (65, 796597), (199, 260195), (995, 52039), (2587, 20015), (4003, 12935)]