About the Number

210990400

210990399 ← → 210990401

2進数表記:1100100100110111010101000000

漢数字表記:二億千九十九万四百

素因数分解:

2 6 × 5 2 × 17 1 × 7757 1

素因数の和:7796
約数の個数: 84
約数和(自身を含む): 549778428
約数和(自身を除く): 338788028

約数列:
[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 64, 68, 80, 85, 100, 136, 160, 170, 200, 272, 320, 340, 400, 425, 544, 680, 800, 850, 1088, 1360, 1600, 1700, 2720, 3400, 5440, 6800, 7757, 13600, 15514, 27200, 31028, 38785, 62056, 77570, 124112, 131869, 155140, 193925, 248224, 263738, 310280, 387850, 496448, 527476, 620560, 659345, 775700, 1054952, 1241120, 1318690, 1551400, 2109904, 2482240, 2637380, 3102800, 3296725, 4219808, 5274760, 6205600, 6593450, 8439616, 10549520, 12411200, 13186900, 21099040, 26373800, 42198080, 52747600, 105495200, 210990400]

約数ペア:
[(1, 210990400), (2, 105495200), (4, 52747600), (5, 42198080), (8, 26373800), (10, 21099040), (16, 13186900), (17, 12411200), (20, 10549520), (25, 8439616), (32, 6593450), (34, 6205600), (40, 5274760), (50, 4219808), (64, 3296725), (68, 3102800), (80, 2637380), (85, 2482240), (100, 2109904), (136, 1551400), (160, 1318690), (170, 1241120), (200, 1054952), (272, 775700), (320, 659345), (340, 620560), (400, 527476), (425, 496448), (544, 387850), (680, 310280), (800, 263738), (850, 248224), (1088, 193925), (1360, 155140), (1600, 131869), (1700, 124112), (2720, 77570), (3400, 62056), (5440, 38785), (6800, 31028), (7757, 27200), (13600, 15514)]

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