198257920

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:173

約数の個数: 216

約数和(自身を含む): 576714600

約数和(自身を除く): 378456680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 29, 32, 35, 40, 49, 56, 58, 64, 70, 80, 98, 109, 112, 116, 128, 140, 145, 160, 196, 203, 218, 224, 232, 245, 256, 280, 290, 320, 392, 406, 436, 448, 464, 490, 545, 560, 580, 640, 763, 784, 812, 872, 896, 928, 980, 1015, 1090, 1120, 1160, 1280, 1421, 1526, 1568, 1624, 1744, 1792, 1856, 1960, 2030, 2180, 2240, 2320, 2842, 3052, 3136, 3161, 3248, 3488, 3712, 3815, 3920, 4060, 4360, 4480, 4640, 5341, 5684, 6104, 6272, 6322, 6496, 6976, 7105, 7424, 7630, 7840, 8120, 8720, 8960, 9280, 10682, 11368, 12208, 12544, 12644, 12992, 13952, 14210, 15260, 15680, 15805, 16240, 17440, 18560, 21364, 22127, 22736, 24416, 25288, 25984, 26705, 27904, 28420, 30520, 31360, 31610, 32480, 34880, 37120, 42728, 44254, 45472, 48832, 50576, 51968, 53410, 56840, 61040, 62720, 63220, 64960, 69760, 85456, 88508, 90944, 97664, 101152, 106820, 110635, 113680, 122080, 126440, 129920, 139520, 154889, 170912, 177016, 181888, 195328, 202304, 213640, 221270, 227360, 244160, 252880, 259840, 309778, 341824, 354032, 363776, 404608, 427280, 442540, 454720, 488320, 505760, 619556, 683648, 708064, 774445, 809216, 854560, 885080, 909440, 976640, 1011520, 1239112, 1367296, 1416128, 1548890, 1709120, 1770160, 1818880, 2023040, 2478224, 2832256, 3097780, 3418240, 3540320, 4046080, 4956448, 5664512, 6195560, 6836480, 7080640, 9912896, 12391120, 14161280, 19825792, 24782240, 28322560, 39651584, 49564480, 99128960, 198257920]

約数ペア:

[(1, 198257920), (2, 99128960), (4, 49564480), (5, 39651584), (7, 28322560), (8, 24782240), (10, 19825792), (14, 14161280), (16, 12391120), (20, 9912896), (28, 7080640), (29, 6836480), (32, 6195560), (35, 5664512), (40, 4956448), (49, 4046080), (56, 3540320), (58, 3418240), (64, 3097780), (70, 2832256), (80, 2478224), (98, 2023040), (109, 1818880), (112, 1770160), (116, 1709120), (128, 1548890), (140, 1416128), (145, 1367296), (160, 1239112), (196, 1011520), (203, 976640), (218, 909440), (224, 885080), (232, 854560), (245, 809216), (256, 774445), (280, 708064), (290, 683648), (320, 619556), (392, 505760), (406, 488320), (436, 454720), (448, 442540), (464, 427280), (490, 404608), (545, 363776), (560, 354032), (580, 341824), (640, 309778), (763, 259840), (784, 252880), (812, 244160), (872, 227360), (896, 221270), (928, 213640), (980, 202304), (1015, 195328), (1090, 181888), (1120, 177016), (1160, 170912), (1280, 154889), (1421, 139520), (1526, 129920), (1568, 126440), (1624, 122080), (1744, 113680), (1792, 110635), (1856, 106820), (1960, 101152), (2030, 97664), (2180, 90944), (2240, 88508), (2320, 85456), (2842, 69760), (3052, 64960), (3136, 63220), (3161, 62720), (3248, 61040), (3488, 56840), (3712, 53410), (3815, 51968), (3920, 50576), (4060, 48832), (4360, 45472), (4480, 44254), (4640, 42728), (5341, 37120), (5684, 34880), (6104, 32480), (6272, 31610), (6322, 31360), (6496, 30520), (6976, 28420), (7105, 27904), (7424, 26705), (7630, 25984), (7840, 25288), (8120, 24416), (8720, 22736), (8960, 22127), (9280, 21364), (10682, 18560), (11368, 17440), (12208, 16240), (12544, 15805), (12644, 15680), (12992, 15260), (13952, 14210)]