81408320

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{36343}}^1$

素因数の和:36367

約数の個数: 56

約数和(自身を含む): 221553024

約数和(自身を除く): 140144704

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 140, 160, 224, 280, 320, 448, 560, 1120, 2240, 36343, 72686, 145372, 181715, 254401, 290744, 363430, 508802, 581488, 726860, 1017604, 1162976, 1272005, 1453720, 2035208, 2325952, 2544010, 2907440, 4070416, 5088020, 5814880, 8140832, 10176040, 11629760, 16281664, 20352080, 40704160, 81408320]

約数ペア:

[(1, 81408320), (2, 40704160), (4, 20352080), (5, 16281664), (7, 11629760), (8, 10176040), (10, 8140832), (14, 5814880), (16, 5088020), (20, 4070416), (28, 2907440), (32, 2544010), (35, 2325952), (40, 2035208), (56, 1453720), (64, 1272005), (70, 1162976), (80, 1017604), (112, 726860), (140, 581488), (160, 508802), (224, 363430), (280, 290744), (320, 254401), (448, 181715), (560, 145372), (1120, 72686), (2240, 36343)]