2940340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 6830208

約数和(自身を除く): 3889868

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 263, 430, 526, 559, 860, 1052, 1118, 1315, 2236, 2630, 2795, 3419, 5260, 5590, 6838, 11180, 11309, 13676, 17095, 22618, 34190, 45236, 56545, 68380, 113090, 147017, 226180, 294034, 588068, 735085, 1470170, 2940340]

約数ペア:

[(1, 2940340), (2, 1470170), (4, 735085), (5, 588068), (10, 294034), (13, 226180), (20, 147017), (26, 113090), (43, 68380), (52, 56545), (65, 45236), (86, 34190), (130, 22618), (172, 17095), (215, 13676), (260, 11309), (263, 11180), (430, 6838), (526, 5590), (559, 5260), (860, 3419), (1052, 2795), (1118, 2630), (1315, 2236)]