About the Number

128690040

128690039 ← → 128690041

2進数表記:111101010111010011101111000

漢数字表記:一億二千八百六十九万四十

素因数分解:

2 3 × 3 1 × 5 1 × 19 1 × 56443 1

素因数の和:56476
約数の個数: 64
約数和(自身を含む): 406396800
約数和(自身を除く): 277706760

約数列:
[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 56443, 112886, 169329, 225772, 282215, 338658, 451544, 564430, 677316, 846645, 1072417, 1128860, 1354632, 1693290, 2144834, 2257720, 3217251, 3386580, 4289668, 5362085, 6434502, 6773160, 8579336, 10724170, 12869004, 16086255, 21448340, 25738008, 32172510, 42896680, 64345020, 128690040]

約数ペア:
[(1, 128690040), (2, 64345020), (3, 42896680), (4, 32172510), (5, 25738008), (6, 21448340), (8, 16086255), (10, 12869004), (12, 10724170), (15, 8579336), (19, 6773160), (20, 6434502), (24, 5362085), (30, 4289668), (38, 3386580), (40, 3217251), (57, 2257720), (60, 2144834), (76, 1693290), (95, 1354632), (114, 1128860), (120, 1072417), (152, 846645), (190, 677316), (228, 564430), (285, 451544), (380, 338658), (456, 282215), (570, 225772), (760, 169329), (1140, 112886), (2280, 56443)]

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