81152820

素因数分解:

$2^2\times 3^3\times 5^1\times 7^2\times {\mathrm{3067}}^1$

素因数の和:3099

約数の個数: 144

約数和(自身を含む): 293791680

約数和(自身を除く): 212638860

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, 49, 54, 60, 63, 70, 84, 90, 98, 105, 108, 126, 135, 140, 147, 180, 189, 196, 210, 245, 252, 270, 294, 315, 378, 420, 441, 490, 540, 588, 630, 735, 756, 882, 945, 980, 1260, 1323, 1470, 1764, 1890, 2205, 2646, 2940, 3067, 3780, 4410, 5292, 6134, 6615, 8820, 9201, 12268, 13230, 15335, 18402, 21469, 26460, 27603, 30670, 36804, 42938, 46005, 55206, 61340, 64407, 82809, 85876, 92010, 107345, 110412, 128814, 138015, 150283, 165618, 184020, 193221, 214690, 257628, 276030, 300566, 322035, 331236, 386442, 414045, 429380, 450849, 552060, 579663, 601132, 644070, 751415, 772884, 828090, 901698, 966105, 1159326, 1288140, 1352547, 1502830, 1656180, 1803396, 1932210, 2254245, 2318652, 2705094, 2898315, 3005660, 3864420, 4057641, 4508490, 5410188, 5796630, 6762735, 8115282, 9016980, 11593260, 13525470, 16230564, 20288205, 27050940, 40576410, 81152820]

約数ペア:

[(1, 81152820), (2, 40576410), (3, 27050940), (4, 20288205), (5, 16230564), (6, 13525470), (7, 11593260), (9, 9016980), (10, 8115282), (12, 6762735), (14, 5796630), (15, 5410188), (18, 4508490), (20, 4057641), (21, 3864420), (27, 3005660), (28, 2898315), (30, 2705094), (35, 2318652), (36, 2254245), (42, 1932210), (45, 1803396), (49, 1656180), (54, 1502830), (60, 1352547), (63, 1288140), (70, 1159326), (84, 966105), (90, 901698), (98, 828090), (105, 772884), (108, 751415), (126, 644070), (135, 601132), (140, 579663), (147, 552060), (180, 450849), (189, 429380), (196, 414045), (210, 386442), (245, 331236), (252, 322035), (270, 300566), (294, 276030), (315, 257628), (378, 214690), (420, 193221), (441, 184020), (490, 165618), (540, 150283), (588, 138015), (630, 128814), (735, 110412), (756, 107345), (882, 92010), (945, 85876), (980, 82809), (1260, 64407), (1323, 61340), (1470, 55206), (1764, 46005), (1890, 42938), (2205, 36804), (2646, 30670), (2940, 27603), (3067, 26460), (3780, 21469), (4410, 18402), (5292, 15335), (6134, 13230), (6615, 12268), (8820, 9201)]