19650400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1$

素因数の和:78

約数の個数: 216

約数和(自身を含む): 62339760

約数和(自身を除く): 42689360

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 25, 28, 29, 32, 35, 40, 44, 50, 55, 56, 58, 70, 77, 80, 88, 100, 110, 112, 116, 121, 140, 145, 154, 160, 175, 176, 200, 203, 220, 224, 232, 242, 275, 280, 290, 308, 319, 350, 352, 385, 400, 406, 440, 464, 484, 550, 560, 580, 605, 616, 638, 700, 725, 770, 800, 812, 847, 880, 928, 968, 1015, 1100, 1120, 1160, 1210, 1232, 1276, 1400, 1450, 1540, 1595, 1624, 1694, 1760, 1925, 1936, 2030, 2200, 2233, 2320, 2420, 2464, 2552, 2800, 2900, 3025, 3080, 3190, 3248, 3388, 3509, 3850, 3872, 4060, 4235, 4400, 4466, 4640, 4840, 5075, 5104, 5600, 5800, 6050, 6160, 6380, 6496, 6776, 7018, 7700, 7975, 8120, 8470, 8800, 8932, 9680, 10150, 10208, 11165, 11600, 12100, 12320, 12760, 13552, 14036, 15400, 15950, 16240, 16940, 17545, 17864, 19360, 20300, 21175, 22330, 23200, 24200, 24563, 25520, 27104, 28072, 30800, 31900, 32480, 33880, 35090, 35728, 40600, 42350, 44660, 48400, 49126, 51040, 55825, 56144, 61600, 63800, 67760, 70180, 71456, 81200, 84700, 87725, 89320, 96800, 98252, 111650, 112288, 122815, 127600, 135520, 140360, 162400, 169400, 175450, 178640, 196504, 223300, 245630, 255200, 280720, 338800, 350900, 357280, 393008, 446600, 491260, 561440, 614075, 677600, 701800, 786016, 893200, 982520, 1228150, 1403600, 1786400, 1965040, 2456300, 2807200, 3930080, 4912600, 9825200, 19650400]

約数ペア:

[(1, 19650400), (2, 9825200), (4, 4912600), (5, 3930080), (7, 2807200), (8, 2456300), (10, 1965040), (11, 1786400), (14, 1403600), (16, 1228150), (20, 982520), (22, 893200), (25, 786016), (28, 701800), (29, 677600), (32, 614075), (35, 561440), (40, 491260), (44, 446600), (50, 393008), (55, 357280), (56, 350900), (58, 338800), (70, 280720), (77, 255200), (80, 245630), (88, 223300), (100, 196504), (110, 178640), (112, 175450), (116, 169400), (121, 162400), (140, 140360), (145, 135520), (154, 127600), (160, 122815), (175, 112288), (176, 111650), (200, 98252), (203, 96800), (220, 89320), (224, 87725), (232, 84700), (242, 81200), (275, 71456), (280, 70180), (290, 67760), (308, 63800), (319, 61600), (350, 56144), (352, 55825), (385, 51040), (400, 49126), (406, 48400), (440, 44660), (464, 42350), (484, 40600), (550, 35728), (560, 35090), (580, 33880), (605, 32480), (616, 31900), (638, 30800), (700, 28072), (725, 27104), (770, 25520), (800, 24563), (812, 24200), (847, 23200), (880, 22330), (928, 21175), (968, 20300), (1015, 19360), (1100, 17864), (1120, 17545), (1160, 16940), (1210, 16240), (1232, 15950), (1276, 15400), (1400, 14036), (1450, 13552), (1540, 12760), (1595, 12320), (1624, 12100), (1694, 11600), (1760, 11165), (1925, 10208), (1936, 10150), (2030, 9680), (2200, 8932), (2233, 8800), (2320, 8470), (2420, 8120), (2464, 7975), (2552, 7700), (2800, 7018), (2900, 6776), (3025, 6496), (3080, 6380), (3190, 6160), (3248, 6050), (3388, 5800), (3509, 5600), (3850, 5104), (3872, 5075), (4060, 4840), (4235, 4640), (4400, 4466)]