17980690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19759}}^1$

素因数の和:19786

約数の個数: 32

約数和(自身を含む): 39836160

約数和(自身を除く): 21855470

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 19759, 39518, 98795, 138313, 197590, 256867, 276626, 513734, 691565, 1284335, 1383130, 1798069, 2568670, 3596138, 8990345, 17980690]

約数ペア:

[(1, 17980690), (2, 8990345), (5, 3596138), (7, 2568670), (10, 1798069), (13, 1383130), (14, 1284335), (26, 691565), (35, 513734), (65, 276626), (70, 256867), (91, 197590), (130, 138313), (182, 98795), (455, 39518), (910, 19759)]