259821380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{142759}}^1$

素因数の和:142788

約数の個数: 48

約数和(自身を含む): 671543040

約数和(自身を除く): 411721660

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 142759, 285518, 571036, 713795, 999313, 1427590, 1855867, 1998626, 2855180, 3711734, 3997252, 4996565, 7423468, 9279335, 9993130, 12991069, 18558670, 19986260, 25982138, 37117340, 51964276, 64955345, 129910690, 259821380]

約数ペア:

[(1, 259821380), (2, 129910690), (4, 64955345), (5, 51964276), (7, 37117340), (10, 25982138), (13, 19986260), (14, 18558670), (20, 12991069), (26, 9993130), (28, 9279335), (35, 7423468), (52, 4996565), (65, 3997252), (70, 3711734), (91, 2855180), (130, 1998626), (140, 1855867), (182, 1427590), (260, 999313), (364, 713795), (455, 571036), (910, 285518), (1820, 142759)]