28905890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5171}}^1$

素因数の和:5234

約数の個数: 32

約数和(自身を含む): 57347136

約数和(自身を除く): 28441246

約数列:

[1, 2, 5, 10, 13, 26, 43, 65, 86, 130, 215, 430, 559, 1118, 2795, 5171, 5590, 10342, 25855, 51710, 67223, 134446, 222353, 336115, 444706, 672230, 1111765, 2223530, 2890589, 5781178, 14452945, 28905890]

約数ペア:

[(1, 28905890), (2, 14452945), (5, 5781178), (10, 2890589), (13, 2223530), (26, 1111765), (43, 672230), (65, 444706), (86, 336115), (130, 222353), (215, 134446), (430, 67223), (559, 51710), (1118, 25855), (2795, 10342), (5171, 5590)]