80820180

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{7127}}^1$

素因数の和:7155

約数の個数: 120

約数和(自身を含む): 289795968

約数和(自身を除く): 208975788

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, 1890, 2268, 2835, 3780, 5670, 7127, 11340, 14254, 21381, 28508, 35635, 42762, 49889, 64143, 71270, 85524, 99778, 106905, 128286, 142540, 149667, 192429, 199556, 213810, 249445, 256572, 299334, 320715, 384858, 427620, 449001, 498890, 577287, 598668, 641430, 748335, 769716, 898002, 962145, 997780, 1154574, 1282860, 1347003, 1496670, 1796004, 1924290, 2245005, 2309148, 2694006, 2886435, 2993340, 3848580, 4041009, 4490010, 5388012, 5772870, 6735015, 8082018, 8980020, 11545740, 13470030, 16164036, 20205045, 26940060, 40410090, 80820180]

約数ペア:

[(1, 80820180), (2, 40410090), (3, 26940060), (4, 20205045), (5, 16164036), (6, 13470030), (7, 11545740), (9, 8980020), (10, 8082018), (12, 6735015), (14, 5772870), (15, 5388012), (18, 4490010), (20, 4041009), (21, 3848580), (27, 2993340), (28, 2886435), (30, 2694006), (35, 2309148), (36, 2245005), (42, 1924290), (45, 1796004), (54, 1496670), (60, 1347003), (63, 1282860), (70, 1154574), (81, 997780), (84, 962145), (90, 898002), (105, 769716), (108, 748335), (126, 641430), (135, 598668), (140, 577287), (162, 498890), (180, 449001), (189, 427620), (210, 384858), (252, 320715), (270, 299334), (315, 256572), (324, 249445), (378, 213810), (405, 199556), (420, 192429), (540, 149667), (567, 142540), (630, 128286), (756, 106905), (810, 99778), (945, 85524), (1134, 71270), (1260, 64143), (1620, 49889), (1890, 42762), (2268, 35635), (2835, 28508), (3780, 21381), (5670, 14254), (7127, 11340)]