20582380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:335

約数の個数: 96

約数和(自身を含む): 54641664

約数和(自身を除く): 34059284

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 43, 52, 65, 70, 86, 91, 130, 140, 172, 182, 215, 260, 263, 301, 364, 430, 455, 526, 559, 602, 860, 910, 1052, 1118, 1204, 1315, 1505, 1820, 1841, 2236, 2630, 2795, 3010, 3419, 3682, 3913, 5260, 5590, 6020, 6838, 7364, 7826, 9205, 11180, 11309, 13676, 15652, 17095, 18410, 19565, 22618, 23933, 34190, 36820, 39130, 45236, 47866, 56545, 68380, 78260, 79163, 95732, 113090, 119665, 147017, 158326, 226180, 239330, 294034, 316652, 395815, 478660, 588068, 735085, 791630, 1029119, 1470170, 1583260, 2058238, 2940340, 4116476, 5145595, 10291190, 20582380]

約数ペア:

[(1, 20582380), (2, 10291190), (4, 5145595), (5, 4116476), (7, 2940340), (10, 2058238), (13, 1583260), (14, 1470170), (20, 1029119), (26, 791630), (28, 735085), (35, 588068), (43, 478660), (52, 395815), (65, 316652), (70, 294034), (86, 239330), (91, 226180), (130, 158326), (140, 147017), (172, 119665), (182, 113090), (215, 95732), (260, 79163), (263, 78260), (301, 68380), (364, 56545), (430, 47866), (455, 45236), (526, 39130), (559, 36820), (602, 34190), (860, 23933), (910, 22618), (1052, 19565), (1118, 18410), (1204, 17095), (1315, 15652), (1505, 13676), (1820, 11309), (1841, 11180), (2236, 9205), (2630, 7826), (2795, 7364), (3010, 6838), (3419, 6020), (3682, 5590), (3913, 5260)]