721234080

素因数分解:

$2^5\times 3^2\times 5^1\times 7^1\times {\mathrm{71551}}^1$

素因数の和:71579

約数の個数: 144

約数和(自身を含む): 2812852224

約数和(自身を除く): 2091618144

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 140, 144, 160, 168, 180, 210, 224, 240, 252, 280, 288, 315, 336, 360, 420, 480, 504, 560, 630, 672, 720, 840, 1008, 1120, 1260, 1440, 1680, 2016, 2520, 3360, 5040, 10080, 71551, 143102, 214653, 286204, 357755, 429306, 500857, 572408, 643959, 715510, 858612, 1001714, 1073265, 1144816, 1287918, 1431020, 1502571, 1717224, 2003428, 2146530, 2289632, 2504285, 2575836, 2862040, 3005142, 3219795, 3434448, 4006856, 4293060, 4507713, 5008570, 5151672, 5724080, 6010284, 6439590, 6868896, 7512855, 8013712, 8586120, 9015426, 10017140, 10303344, 11448160, 12020568, 12879180, 15025710, 16027424, 17172240, 18030852, 20034280, 20606688, 22538565, 24041136, 25758360, 30051420, 34344480, 36061704, 40068560, 45077130, 48082272, 51516720, 60102840, 72123408, 80137120, 90154260, 103033440, 120205680, 144246816, 180308520, 240411360, 360617040, 721234080]

約数ペア:

[(1, 721234080), (2, 360617040), (3, 240411360), (4, 180308520), (5, 144246816), (6, 120205680), (7, 103033440), (8, 90154260), (9, 80137120), (10, 72123408), (12, 60102840), (14, 51516720), (15, 48082272), (16, 45077130), (18, 40068560), (20, 36061704), (21, 34344480), (24, 30051420), (28, 25758360), (30, 24041136), (32, 22538565), (35, 20606688), (36, 20034280), (40, 18030852), (42, 17172240), (45, 16027424), (48, 15025710), (56, 12879180), (60, 12020568), (63, 11448160), (70, 10303344), (72, 10017140), (80, 9015426), (84, 8586120), (90, 8013712), (96, 7512855), (105, 6868896), (112, 6439590), (120, 6010284), (126, 5724080), (140, 5151672), (144, 5008570), (160, 4507713), (168, 4293060), (180, 4006856), (210, 3434448), (224, 3219795), (240, 3005142), (252, 2862040), (280, 2575836), (288, 2504285), (315, 2289632), (336, 2146530), (360, 2003428), (420, 1717224), (480, 1502571), (504, 1431020), (560, 1287918), (630, 1144816), (672, 1073265), (720, 1001714), (840, 858612), (1008, 715510), (1120, 643959), (1260, 572408), (1440, 500857), (1680, 429306), (2016, 357755), (2520, 286204), (3360, 214653), (5040, 143102), (10080, 71551)]