20565527060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{277}}^1\times {\mathrm{285553}}^1$

素因数の和:285852

約数の個数: 48

約数和(自身を含む): 46677799056

約数和(自身を除く): 26112271996

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 277, 554, 1108, 1385, 2770, 3601, 5540, 7202, 14404, 18005, 36010, 72020, 285553, 571106, 1142212, 1427765, 2855530, 3712189, 5711060, 7424378, 14848756, 18560945, 37121890, 74243780, 79098181, 158196362, 316392724, 395490905, 790981810, 1028276353, 1581963620, 2056552706, 4113105412, 5141381765, 10282763530, 20565527060]

約数ペア:

[(1, 20565527060), (2, 10282763530), (4, 5141381765), (5, 4113105412), (10, 2056552706), (13, 1581963620), (20, 1028276353), (26, 790981810), (52, 395490905), (65, 316392724), (130, 158196362), (260, 79098181), (277, 74243780), (554, 37121890), (1108, 18560945), (1385, 14848756), (2770, 7424378), (3601, 5711060), (5540, 3712189), (7202, 2855530), (14404, 1427765), (18005, 1142212), (36010, 571106), (72020, 285553)]