About the Number

128400840

128400839 ← → 128400841

2進数表記:111101001110011110111001000

漢数字表記:一億二千八百四十万八百四十

素因数分解:

2 3 × 3 2 × 5 1 × 97 1 × 3677 1

素因数の和:3791
約数の個数: 96
約数和(自身を含む): 421719480
約数和(自身を除く): 293318640

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 97, 120, 180, 194, 291, 360, 388, 485, 582, 776, 873, 970, 1164, 1455, 1746, 1940, 2328, 2910, 3492, 3677, 3880, 4365, 5820, 6984, 7354, 8730, 11031, 11640, 14708, 17460, 18385, 22062, 29416, 33093, 34920, 36770, 44124, 55155, 66186, 73540, 88248, 110310, 132372, 147080, 165465, 220620, 264744, 330930, 356669, 441240, 661860, 713338, 1070007, 1323720, 1426676, 1783345, 2140014, 2853352, 3210021, 3566690, 4280028, 5350035, 6420042, 7133380, 8560056, 10700070, 12840084, 14266760, 16050105, 21400140, 25680168, 32100210, 42800280, 64200420, 128400840]

約数ペア:
[(1, 128400840), (2, 64200420), (3, 42800280), (4, 32100210), (5, 25680168), (6, 21400140), (8, 16050105), (9, 14266760), (10, 12840084), (12, 10700070), (15, 8560056), (18, 7133380), (20, 6420042), (24, 5350035), (30, 4280028), (36, 3566690), (40, 3210021), (45, 2853352), (60, 2140014), (72, 1783345), (90, 1426676), (97, 1323720), (120, 1070007), (180, 713338), (194, 661860), (291, 441240), (360, 356669), (388, 330930), (485, 264744), (582, 220620), (776, 165465), (873, 147080), (970, 132372), (1164, 110310), (1455, 88248), (1746, 73540), (1940, 66186), (2328, 55155), (2910, 44124), (3492, 36770), (3677, 34920), (3880, 33093), (4365, 29416), (5820, 22062), (6984, 18385), (7354, 17460), (8730, 14708), (11031, 11640)]

このpageの処理時間: 0.0057163238525390625 seconds