209776580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{2851}}^1$

素因数の和:3156

約数の個数: 48

約数和(自身を含む): 476261184

約数和(自身を除く): 266484604

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 283, 566, 1132, 1415, 2830, 2851, 3679, 5660, 5702, 7358, 11404, 14255, 14716, 18395, 28510, 36790, 37063, 57020, 73580, 74126, 148252, 185315, 370630, 741260, 806833, 1613666, 3227332, 4034165, 8068330, 10488829, 16136660, 20977658, 41955316, 52444145, 104888290, 209776580]

約数ペア:

[(1, 209776580), (2, 104888290), (4, 52444145), (5, 41955316), (10, 20977658), (13, 16136660), (20, 10488829), (26, 8068330), (52, 4034165), (65, 3227332), (130, 1613666), (260, 806833), (283, 741260), (566, 370630), (1132, 185315), (1415, 148252), (2830, 74126), (2851, 73580), (3679, 57020), (5660, 37063), (5702, 36790), (7358, 28510), (11404, 18395), (14255, 14716)]