20423340

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{1801}}^1$

素因数の和:1829

約数の個数: 120

約数和(自身を含む): 73262112

約数和(自身を除く): 52838772

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1801, 1890, 2268, 2835, 3602, 3780, 5403, 5670, 7204, 9005, 10806, 11340, 12607, 16209, 18010, 21612, 25214, 27015, 32418, 36020, 37821, 48627, 50428, 54030, 63035, 64836, 75642, 81045, 97254, 108060, 113463, 126070, 145881, 151284, 162090, 189105, 194508, 226926, 243135, 252140, 291762, 324180, 340389, 378210, 453852, 486270, 567315, 583524, 680778, 729405, 756420, 972540, 1021167, 1134630, 1361556, 1458810, 1701945, 2042334, 2269260, 2917620, 3403890, 4084668, 5105835, 6807780, 10211670, 20423340]

約数ペア:

[(1, 20423340), (2, 10211670), (3, 6807780), (4, 5105835), (5, 4084668), (6, 3403890), (7, 2917620), (9, 2269260), (10, 2042334), (12, 1701945), (14, 1458810), (15, 1361556), (18, 1134630), (20, 1021167), (21, 972540), (27, 756420), (28, 729405), (30, 680778), (35, 583524), (36, 567315), (42, 486270), (45, 453852), (54, 378210), (60, 340389), (63, 324180), (70, 291762), (81, 252140), (84, 243135), (90, 226926), (105, 194508), (108, 189105), (126, 162090), (135, 151284), (140, 145881), (162, 126070), (180, 113463), (189, 108060), (210, 97254), (252, 81045), (270, 75642), (315, 64836), (324, 63035), (378, 54030), (405, 50428), (420, 48627), (540, 37821), (567, 36020), (630, 32418), (756, 27015), (810, 25214), (945, 21612), (1134, 18010), (1260, 16209), (1620, 12607), (1801, 11340), (1890, 10806), (2268, 9005), (2835, 7204), (3602, 5670), (3780, 5403)]