30684780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^4\times {\mathrm{71}}^1$

素因数の和:114

約数の個数: 180

約数和(自身を含む): 110112912

約数和(自身を除く): 79428132

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 71, 84, 90, 98, 105, 126, 140, 142, 147, 180, 196, 210, 213, 245, 252, 284, 294, 315, 343, 355, 420, 426, 441, 490, 497, 588, 630, 639, 686, 710, 735, 852, 882, 980, 994, 1029, 1065, 1260, 1278, 1372, 1420, 1470, 1491, 1715, 1764, 1988, 2058, 2130, 2205, 2401, 2485, 2556, 2940, 2982, 3087, 3195, 3430, 3479, 4116, 4260, 4410, 4473, 4802, 4970, 5145, 5964, 6174, 6390, 6860, 6958, 7203, 7455, 8820, 8946, 9604, 9940, 10290, 10437, 12005, 12348, 12780, 13916, 14406, 14910, 15435, 17395, 17892, 20580, 20874, 21609, 22365, 24010, 24353, 28812, 29820, 30870, 31311, 34790, 36015, 41748, 43218, 44730, 48020, 48706, 52185, 61740, 62622, 69580, 72030, 73059, 86436, 89460, 97412, 104370, 108045, 121765, 125244, 144060, 146118, 156555, 170471, 208740, 216090, 219177, 243530, 292236, 313110, 340942, 365295, 432180, 438354, 487060, 511413, 626220, 681884, 730590, 852355, 876708, 1022826, 1095885, 1461180, 1534239, 1704710, 2045652, 2191770, 2557065, 3068478, 3409420, 4383540, 5114130, 6136956, 7671195, 10228260, 15342390, 30684780]

約数ペア:

[(1, 30684780), (2, 15342390), (3, 10228260), (4, 7671195), (5, 6136956), (6, 5114130), (7, 4383540), (9, 3409420), (10, 3068478), (12, 2557065), (14, 2191770), (15, 2045652), (18, 1704710), (20, 1534239), (21, 1461180), (28, 1095885), (30, 1022826), (35, 876708), (36, 852355), (42, 730590), (45, 681884), (49, 626220), (60, 511413), (63, 487060), (70, 438354), (71, 432180), (84, 365295), (90, 340942), (98, 313110), (105, 292236), (126, 243530), (140, 219177), (142, 216090), (147, 208740), (180, 170471), (196, 156555), (210, 146118), (213, 144060), (245, 125244), (252, 121765), (284, 108045), (294, 104370), (315, 97412), (343, 89460), (355, 86436), (420, 73059), (426, 72030), (441, 69580), (490, 62622), (497, 61740), (588, 52185), (630, 48706), (639, 48020), (686, 44730), (710, 43218), (735, 41748), (852, 36015), (882, 34790), (980, 31311), (994, 30870), (1029, 29820), (1065, 28812), (1260, 24353), (1278, 24010), (1372, 22365), (1420, 21609), (1470, 20874), (1491, 20580), (1715, 17892), (1764, 17395), (1988, 15435), (2058, 14910), (2130, 14406), (2205, 13916), (2401, 12780), (2485, 12348), (2556, 12005), (2940, 10437), (2982, 10290), (3087, 9940), (3195, 9604), (3430, 8946), (3479, 8820), (4116, 7455), (4260, 7203), (4410, 6958), (4473, 6860), (4802, 6390), (4970, 6174), (5145, 5964)]