207281920

素因数分解:

$2^8\times 5^1\times {\mathrm{67}}^1\times {\mathrm{2417}}^1$

素因数の和:2505

約数の個数: 72

約数和(自身を含む): 504123984

約数和(自身を除く): 296842064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 67, 80, 128, 134, 160, 256, 268, 320, 335, 536, 640, 670, 1072, 1280, 1340, 2144, 2417, 2680, 4288, 4834, 5360, 8576, 9668, 10720, 12085, 17152, 19336, 21440, 24170, 38672, 42880, 48340, 77344, 85760, 96680, 154688, 161939, 193360, 309376, 323878, 386720, 618752, 647756, 773440, 809695, 1295512, 1546880, 1619390, 2591024, 3093760, 3238780, 5182048, 6477560, 10364096, 12955120, 20728192, 25910240, 41456384, 51820480, 103640960, 207281920]

約数ペア:

[(1, 207281920), (2, 103640960), (4, 51820480), (5, 41456384), (8, 25910240), (10, 20728192), (16, 12955120), (20, 10364096), (32, 6477560), (40, 5182048), (64, 3238780), (67, 3093760), (80, 2591024), (128, 1619390), (134, 1546880), (160, 1295512), (256, 809695), (268, 773440), (320, 647756), (335, 618752), (536, 386720), (640, 323878), (670, 309376), (1072, 193360), (1280, 161939), (1340, 154688), (2144, 96680), (2417, 85760), (2680, 77344), (4288, 48340), (4834, 42880), (5360, 38672), (8576, 24170), (9668, 21440), (10720, 19336), (12085, 17152)]