12821340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^4\times {\mathrm{89}}^1$

素因数の和:129

約数の個数: 120

約数和(自身を含む): 42351120

約数和(自身を除く): 29529780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 89, 98, 105, 140, 147, 178, 196, 210, 245, 267, 294, 343, 356, 420, 445, 490, 534, 588, 623, 686, 735, 890, 980, 1029, 1068, 1246, 1335, 1372, 1470, 1715, 1780, 1869, 2058, 2401, 2492, 2670, 2940, 3115, 3430, 3738, 4116, 4361, 4802, 5145, 5340, 6230, 6860, 7203, 7476, 8722, 9345, 9604, 10290, 12005, 12460, 13083, 14406, 17444, 18690, 20580, 21805, 24010, 26166, 28812, 30527, 36015, 37380, 43610, 48020, 52332, 61054, 65415, 72030, 87220, 91581, 122108, 130830, 144060, 152635, 183162, 213689, 261660, 305270, 366324, 427378, 457905, 610540, 641067, 854756, 915810, 1068445, 1282134, 1831620, 2136890, 2564268, 3205335, 4273780, 6410670, 12821340]

約数ペア:

[(1, 12821340), (2, 6410670), (3, 4273780), (4, 3205335), (5, 2564268), (6, 2136890), (7, 1831620), (10, 1282134), (12, 1068445), (14, 915810), (15, 854756), (20, 641067), (21, 610540), (28, 457905), (30, 427378), (35, 366324), (42, 305270), (49, 261660), (60, 213689), (70, 183162), (84, 152635), (89, 144060), (98, 130830), (105, 122108), (140, 91581), (147, 87220), (178, 72030), (196, 65415), (210, 61054), (245, 52332), (267, 48020), (294, 43610), (343, 37380), (356, 36015), (420, 30527), (445, 28812), (490, 26166), (534, 24010), (588, 21805), (623, 20580), (686, 18690), (735, 17444), (890, 14406), (980, 13083), (1029, 12460), (1068, 12005), (1246, 10290), (1335, 9604), (1372, 9345), (1470, 8722), (1715, 7476), (1780, 7203), (1869, 6860), (2058, 6230), (2401, 5340), (2492, 5145), (2670, 4802), (2940, 4361), (3115, 4116), (3430, 3738)]