261940320

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{181903}}^1$

素因数の和:181924

約数の個数: 72

約数和(自身を含む): 893876256

約数和(自身を除く): 631935936

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 181903, 363806, 545709, 727612, 909515, 1091418, 1455224, 1637127, 1819030, 2182836, 2728545, 2910448, 3274254, 3638060, 4365672, 5457090, 5820896, 6548508, 7276120, 8185635, 8731344, 10914180, 13097016, 14552240, 16371270, 17462688, 21828360, 26194032, 29104480, 32742540, 43656720, 52388064, 65485080, 87313440, 130970160, 261940320]

約数ペア:

[(1, 261940320), (2, 130970160), (3, 87313440), (4, 65485080), (5, 52388064), (6, 43656720), (8, 32742540), (9, 29104480), (10, 26194032), (12, 21828360), (15, 17462688), (16, 16371270), (18, 14552240), (20, 13097016), (24, 10914180), (30, 8731344), (32, 8185635), (36, 7276120), (40, 6548508), (45, 5820896), (48, 5457090), (60, 4365672), (72, 3638060), (80, 3274254), (90, 2910448), (96, 2728545), (120, 2182836), (144, 1819030), (160, 1637127), (180, 1455224), (240, 1091418), (288, 909515), (360, 727612), (480, 545709), (720, 363806), (1440, 181903)]