81431800

素因数分解:

$2^3\times 5^2\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:245

約数の個数: 96

約数和(自身を含む): 197308800

約数和(自身を除く): 115877000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 59, 67, 100, 103, 118, 134, 200, 206, 236, 268, 295, 335, 412, 472, 515, 536, 590, 670, 824, 1030, 1180, 1340, 1475, 1675, 2060, 2360, 2575, 2680, 2950, 3350, 3953, 4120, 5150, 5900, 6077, 6700, 6901, 7906, 10300, 11800, 12154, 13400, 13802, 15812, 19765, 20600, 24308, 27604, 30385, 31624, 34505, 39530, 48616, 55208, 60770, 69010, 79060, 98825, 121540, 138020, 151925, 158120, 172525, 197650, 243080, 276040, 303850, 345050, 395300, 407159, 607700, 690100, 790600, 814318, 1215400, 1380200, 1628636, 2035795, 3257272, 4071590, 8143180, 10178975, 16286360, 20357950, 40715900, 81431800]

約数ペア:

[(1, 81431800), (2, 40715900), (4, 20357950), (5, 16286360), (8, 10178975), (10, 8143180), (20, 4071590), (25, 3257272), (40, 2035795), (50, 1628636), (59, 1380200), (67, 1215400), (100, 814318), (103, 790600), (118, 690100), (134, 607700), (200, 407159), (206, 395300), (236, 345050), (268, 303850), (295, 276040), (335, 243080), (412, 197650), (472, 172525), (515, 158120), (536, 151925), (590, 138020), (670, 121540), (824, 98825), (1030, 79060), (1180, 69010), (1340, 60770), (1475, 55208), (1675, 48616), (2060, 39530), (2360, 34505), (2575, 31624), (2680, 30385), (2950, 27604), (3350, 24308), (3953, 20600), (4120, 19765), (5150, 15812), (5900, 13802), (6077, 13400), (6700, 12154), (6901, 11800), (7906, 10300)]