208497520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:240

約数の個数: 240

約数和(自身を含む): 648333504

約数和(自身を除く): 439835984

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 17, 20, 22, 28, 34, 35, 40, 44, 55, 56, 68, 70, 77, 80, 85, 88, 110, 112, 119, 121, 136, 140, 154, 170, 176, 181, 187, 220, 238, 242, 272, 280, 308, 340, 362, 374, 385, 440, 476, 484, 560, 595, 605, 616, 680, 724, 748, 770, 847, 880, 905, 935, 952, 968, 1190, 1210, 1232, 1267, 1309, 1360, 1448, 1496, 1540, 1694, 1810, 1870, 1904, 1936, 1991, 2057, 2380, 2420, 2534, 2618, 2896, 2992, 3077, 3080, 3388, 3620, 3740, 3982, 4114, 4235, 4760, 4840, 5068, 5236, 6154, 6160, 6335, 6545, 6776, 7240, 7480, 7964, 8228, 8470, 9520, 9680, 9955, 10136, 10285, 10472, 12308, 12670, 13090, 13552, 13937, 14399, 14480, 14960, 15385, 15928, 16456, 16940, 19910, 20272, 20570, 20944, 21539, 21901, 24616, 25340, 26180, 27874, 28798, 30770, 31856, 32912, 33847, 33880, 39820, 41140, 43078, 43802, 49232, 50680, 52360, 55748, 57596, 61540, 67694, 67760, 69685, 71995, 79640, 82280, 86156, 87604, 101360, 104720, 107695, 109505, 111496, 115192, 123080, 135388, 139370, 143990, 153307, 159280, 164560, 169235, 172312, 175208, 215390, 219010, 222992, 230384, 236929, 246160, 270776, 278740, 287980, 306614, 338470, 344624, 350416, 372317, 430780, 438020, 473858, 541552, 557480, 575960, 613228, 676940, 744634, 766535, 861560, 876040, 947716, 1114960, 1151920, 1184645, 1226456, 1353880, 1489268, 1533070, 1723120, 1752080, 1861585, 1895432, 2369290, 2452912, 2606219, 2707760, 2978536, 3066140, 3723170, 3790864, 4738580, 5212438, 5957072, 6132280, 7446340, 9477160, 10424876, 12264560, 13031095, 14892680, 18954320, 20849752, 26062190, 29785360, 41699504, 52124380, 104248760, 208497520]

約数ペア:

[(1, 208497520), (2, 104248760), (4, 52124380), (5, 41699504), (7, 29785360), (8, 26062190), (10, 20849752), (11, 18954320), (14, 14892680), (16, 13031095), (17, 12264560), (20, 10424876), (22, 9477160), (28, 7446340), (34, 6132280), (35, 5957072), (40, 5212438), (44, 4738580), (55, 3790864), (56, 3723170), (68, 3066140), (70, 2978536), (77, 2707760), (80, 2606219), (85, 2452912), (88, 2369290), (110, 1895432), (112, 1861585), (119, 1752080), (121, 1723120), (136, 1533070), (140, 1489268), (154, 1353880), (170, 1226456), (176, 1184645), (181, 1151920), (187, 1114960), (220, 947716), (238, 876040), (242, 861560), (272, 766535), (280, 744634), (308, 676940), (340, 613228), (362, 575960), (374, 557480), (385, 541552), (440, 473858), (476, 438020), (484, 430780), (560, 372317), (595, 350416), (605, 344624), (616, 338470), (680, 306614), (724, 287980), (748, 278740), (770, 270776), (847, 246160), (880, 236929), (905, 230384), (935, 222992), (952, 219010), (968, 215390), (1190, 175208), (1210, 172312), (1232, 169235), (1267, 164560), (1309, 159280), (1360, 153307), (1448, 143990), (1496, 139370), (1540, 135388), (1694, 123080), (1810, 115192), (1870, 111496), (1904, 109505), (1936, 107695), (1991, 104720), (2057, 101360), (2380, 87604), (2420, 86156), (2534, 82280), (2618, 79640), (2896, 71995), (2992, 69685), (3077, 67760), (3080, 67694), (3388, 61540), (3620, 57596), (3740, 55748), (3982, 52360), (4114, 50680), (4235, 49232), (4760, 43802), (4840, 43078), (5068, 41140), (5236, 39820), (6154, 33880), (6160, 33847), (6335, 32912), (6545, 31856), (6776, 30770), (7240, 28798), (7480, 27874), (7964, 26180), (8228, 25340), (8470, 24616), (9520, 21901), (9680, 21539), (9955, 20944), (10136, 20570), (10285, 20272), (10472, 19910), (12308, 16940), (12670, 16456), (13090, 15928), (13552, 15385), (13937, 14960), (14399, 14480)]