208755540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3853}}^1$

素因数の和:3918

約数の個数: 144

約数和(自身を含む): 740707968

約数和(自身を除く): 531952428

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 43, 45, 60, 63, 70, 84, 86, 90, 105, 126, 129, 140, 172, 180, 210, 215, 252, 258, 301, 315, 387, 420, 430, 516, 602, 630, 645, 774, 860, 903, 1204, 1260, 1290, 1505, 1548, 1806, 1935, 2580, 2709, 3010, 3612, 3853, 3870, 4515, 5418, 6020, 7706, 7740, 9030, 10836, 11559, 13545, 15412, 18060, 19265, 23118, 26971, 27090, 34677, 38530, 46236, 53942, 54180, 57795, 69354, 77060, 80913, 107884, 115590, 134855, 138708, 161826, 165679, 173385, 231180, 242739, 269710, 323652, 331358, 346770, 404565, 485478, 497037, 539420, 662716, 693540, 809130, 828395, 970956, 994074, 1159753, 1213695, 1491111, 1618260, 1656790, 1988148, 2319506, 2427390, 2485185, 2982222, 3313580, 3479259, 4639012, 4854780, 4970370, 5798765, 5964444, 6958518, 7455555, 9940740, 10437777, 11597530, 13917036, 14911110, 17396295, 20875554, 23195060, 29822220, 34792590, 41751108, 52188885, 69585180, 104377770, 208755540]

約数ペア:

[(1, 208755540), (2, 104377770), (3, 69585180), (4, 52188885), (5, 41751108), (6, 34792590), (7, 29822220), (9, 23195060), (10, 20875554), (12, 17396295), (14, 14911110), (15, 13917036), (18, 11597530), (20, 10437777), (21, 9940740), (28, 7455555), (30, 6958518), (35, 5964444), (36, 5798765), (42, 4970370), (43, 4854780), (45, 4639012), (60, 3479259), (63, 3313580), (70, 2982222), (84, 2485185), (86, 2427390), (90, 2319506), (105, 1988148), (126, 1656790), (129, 1618260), (140, 1491111), (172, 1213695), (180, 1159753), (210, 994074), (215, 970956), (252, 828395), (258, 809130), (301, 693540), (315, 662716), (387, 539420), (420, 497037), (430, 485478), (516, 404565), (602, 346770), (630, 331358), (645, 323652), (774, 269710), (860, 242739), (903, 231180), (1204, 173385), (1260, 165679), (1290, 161826), (1505, 138708), (1548, 134855), (1806, 115590), (1935, 107884), (2580, 80913), (2709, 77060), (3010, 69354), (3612, 57795), (3853, 54180), (3870, 53942), (4515, 46236), (5418, 38530), (6020, 34677), (7706, 27090), (7740, 26971), (9030, 23118), (10836, 19265), (11559, 18060), (13545, 15412)]