15771420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{12517}}^1$

素因数の和:12539

約数の個数: 72

約数和(自身を含む): 54678624

約数和(自身を除く): 38907204

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, 315, 420, 630, 1260, 12517, 25034, 37551, 50068, 62585, 75102, 87619, 112653, 125170, 150204, 175238, 187755, 225306, 250340, 262857, 350476, 375510, 438095, 450612, 525714, 563265, 751020, 788571, 876190, 1051428, 1126530, 1314285, 1577142, 1752380, 2253060, 2628570, 3154284, 3942855, 5257140, 7885710, 15771420]

約数ペア:

[(1, 15771420), (2, 7885710), (3, 5257140), (4, 3942855), (5, 3154284), (6, 2628570), (7, 2253060), (9, 1752380), (10, 1577142), (12, 1314285), (14, 1126530), (15, 1051428), (18, 876190), (20, 788571), (21, 751020), (28, 563265), (30, 525714), (35, 450612), (36, 438095), (42, 375510), (45, 350476), (60, 262857), (63, 250340), (70, 225306), (84, 187755), (90, 175238), (105, 150204), (126, 125170), (140, 112653), (180, 87619), (210, 75102), (252, 62585), (315, 50068), (420, 37551), (630, 25034), (1260, 12517)]