205455720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1373}}^1$

素因数の和:1459

約数の個数: 128

約数和(自身を含む): 652924800

約数和(自身を除く): 447469080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 29, 30, 40, 43, 58, 60, 86, 87, 116, 120, 129, 145, 172, 174, 215, 232, 258, 290, 344, 348, 430, 435, 516, 580, 645, 696, 860, 870, 1032, 1160, 1247, 1290, 1373, 1720, 1740, 2494, 2580, 2746, 3480, 3741, 4119, 4988, 5160, 5492, 6235, 6865, 7482, 8238, 9976, 10984, 12470, 13730, 14964, 16476, 18705, 20595, 24940, 27460, 29928, 32952, 37410, 39817, 41190, 49880, 54920, 59039, 74820, 79634, 82380, 118078, 119451, 149640, 159268, 164760, 177117, 199085, 236156, 238902, 295195, 318536, 354234, 398170, 472312, 477804, 590390, 597255, 708468, 796340, 885585, 955608, 1180780, 1194510, 1416936, 1592680, 1712131, 1771170, 2361560, 2389020, 3424262, 3542340, 4778040, 5136393, 6848524, 7084680, 8560655, 10272786, 13697048, 17121310, 20545572, 25681965, 34242620, 41091144, 51363930, 68485240, 102727860, 205455720]

約数ペア:

[(1, 205455720), (2, 102727860), (3, 68485240), (4, 51363930), (5, 41091144), (6, 34242620), (8, 25681965), (10, 20545572), (12, 17121310), (15, 13697048), (20, 10272786), (24, 8560655), (29, 7084680), (30, 6848524), (40, 5136393), (43, 4778040), (58, 3542340), (60, 3424262), (86, 2389020), (87, 2361560), (116, 1771170), (120, 1712131), (129, 1592680), (145, 1416936), (172, 1194510), (174, 1180780), (215, 955608), (232, 885585), (258, 796340), (290, 708468), (344, 597255), (348, 590390), (430, 477804), (435, 472312), (516, 398170), (580, 354234), (645, 318536), (696, 295195), (860, 238902), (870, 236156), (1032, 199085), (1160, 177117), (1247, 164760), (1290, 159268), (1373, 149640), (1720, 119451), (1740, 118078), (2494, 82380), (2580, 79634), (2746, 74820), (3480, 59039), (3741, 54920), (4119, 49880), (4988, 41190), (5160, 39817), (5492, 37410), (6235, 32952), (6865, 29928), (7482, 27460), (8238, 24940), (9976, 20595), (10984, 18705), (12470, 16476), (13730, 14964)]