20551323195

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{662839}}^1$

素因数の和:662916

約数の個数: 48

約数和(自身を含む): 39086349120

約数和(自身を除く): 18535025925

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 53, 65, 117, 159, 195, 265, 477, 585, 689, 795, 2067, 2385, 3445, 6201, 10335, 31005, 662839, 1988517, 3314195, 5965551, 8616907, 9942585, 25850721, 29827755, 35130467, 43084535, 77552163, 105391401, 129253605, 175652335, 316174203, 387760815, 456696071, 526957005, 1370088213, 1580871015, 2283480355, 4110264639, 6850441065, 20551323195]

約数ペア:

[(1, 20551323195), (3, 6850441065), (5, 4110264639), (9, 2283480355), (13, 1580871015), (15, 1370088213), (39, 526957005), (45, 456696071), (53, 387760815), (65, 316174203), (117, 175652335), (159, 129253605), (195, 105391401), (265, 77552163), (477, 43084535), (585, 35130467), (689, 29827755), (795, 25850721), (2067, 9942585), (2385, 8616907), (3445, 5965551), (6201, 3314195), (10335, 1988517), (31005, 662839)]