209761020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{601}}^1$

素因数の和:900

約数の個数: 144

約数和(自身を含む): 731011008

約数和(自身を除く): 521249988

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 277, 315, 420, 554, 601, 630, 831, 1108, 1202, 1260, 1385, 1662, 1803, 1939, 2404, 2493, 2770, 3005, 3324, 3606, 3878, 4155, 4207, 4986, 5409, 5540, 5817, 6010, 7212, 7756, 8310, 8414, 9015, 9695, 9972, 10818, 11634, 12020, 12465, 12621, 16620, 16828, 17451, 18030, 19390, 21035, 21636, 23268, 24930, 25242, 27045, 29085, 34902, 36060, 37863, 38780, 42070, 49860, 50484, 54090, 58170, 63105, 69804, 75726, 84140, 87255, 108180, 116340, 126210, 151452, 166477, 174510, 189315, 252420, 332954, 349020, 378630, 499431, 665908, 757260, 832385, 998862, 1165339, 1498293, 1664770, 1997724, 2330678, 2497155, 2996586, 3329540, 3496017, 4661356, 4994310, 5826695, 5993172, 6992034, 7491465, 9988620, 10488051, 11653390, 13984068, 14982930, 17480085, 20976102, 23306780, 29965860, 34960170, 41952204, 52440255, 69920340, 104880510, 209761020]

約数ペア:

[(1, 209761020), (2, 104880510), (3, 69920340), (4, 52440255), (5, 41952204), (6, 34960170), (7, 29965860), (9, 23306780), (10, 20976102), (12, 17480085), (14, 14982930), (15, 13984068), (18, 11653390), (20, 10488051), (21, 9988620), (28, 7491465), (30, 6992034), (35, 5993172), (36, 5826695), (42, 4994310), (45, 4661356), (60, 3496017), (63, 3329540), (70, 2996586), (84, 2497155), (90, 2330678), (105, 1997724), (126, 1664770), (140, 1498293), (180, 1165339), (210, 998862), (252, 832385), (277, 757260), (315, 665908), (420, 499431), (554, 378630), (601, 349020), (630, 332954), (831, 252420), (1108, 189315), (1202, 174510), (1260, 166477), (1385, 151452), (1662, 126210), (1803, 116340), (1939, 108180), (2404, 87255), (2493, 84140), (2770, 75726), (3005, 69804), (3324, 63105), (3606, 58170), (3878, 54090), (4155, 50484), (4207, 49860), (4986, 42070), (5409, 38780), (5540, 37863), (5817, 36060), (6010, 34902), (7212, 29085), (7756, 27045), (8310, 25242), (8414, 24930), (9015, 23268), (9695, 21636), (9972, 21035), (10818, 19390), (11634, 18030), (12020, 17451), (12465, 16828), (12621, 16620)]