19782180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:226

約数の個数: 144

約数和(自身を含む): 66777984

約数和(自身を除く): 46995804

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 97, 99, 103, 110, 132, 165, 180, 194, 198, 206, 220, 291, 309, 330, 388, 396, 412, 485, 495, 515, 582, 618, 660, 873, 927, 970, 990, 1030, 1067, 1133, 1164, 1236, 1455, 1545, 1746, 1854, 1940, 1980, 2060, 2134, 2266, 2910, 3090, 3201, 3399, 3492, 3708, 4268, 4365, 4532, 4635, 5335, 5665, 5820, 6180, 6402, 6798, 8730, 9270, 9603, 9991, 10197, 10670, 11330, 12804, 13596, 16005, 16995, 17460, 18540, 19206, 19982, 20394, 21340, 22660, 29973, 32010, 33990, 38412, 39964, 40788, 48015, 49955, 50985, 59946, 64020, 67980, 89919, 96030, 99910, 101970, 109901, 119892, 149865, 179838, 192060, 199820, 203940, 219802, 299730, 329703, 359676, 439604, 449595, 549505, 599460, 659406, 899190, 989109, 1099010, 1318812, 1648515, 1798380, 1978218, 2198020, 3297030, 3956436, 4945545, 6594060, 9891090, 19782180]

約数ペア:

[(1, 19782180), (2, 9891090), (3, 6594060), (4, 4945545), (5, 3956436), (6, 3297030), (9, 2198020), (10, 1978218), (11, 1798380), (12, 1648515), (15, 1318812), (18, 1099010), (20, 989109), (22, 899190), (30, 659406), (33, 599460), (36, 549505), (44, 449595), (45, 439604), (55, 359676), (60, 329703), (66, 299730), (90, 219802), (97, 203940), (99, 199820), (103, 192060), (110, 179838), (132, 149865), (165, 119892), (180, 109901), (194, 101970), (198, 99910), (206, 96030), (220, 89919), (291, 67980), (309, 64020), (330, 59946), (388, 50985), (396, 49955), (412, 48015), (485, 40788), (495, 39964), (515, 38412), (582, 33990), (618, 32010), (660, 29973), (873, 22660), (927, 21340), (970, 20394), (990, 19982), (1030, 19206), (1067, 18540), (1133, 17460), (1164, 16995), (1236, 16005), (1455, 13596), (1545, 12804), (1746, 11330), (1854, 10670), (1940, 10197), (1980, 9991), (2060, 9603), (2134, 9270), (2266, 8730), (2910, 6798), (3090, 6402), (3201, 6180), (3399, 5820), (3492, 5665), (3708, 5335), (4268, 4635), (4365, 4532)]