About the Number

231508900

231508899 ← → 231508901

2進数表記:1101110011001000101110100100

漢数字表記:二億三千百五十万八千九百

素因数分解:

2 2 × 5 2 × 7 1 × 163 1 × 2029 1

素因数の和:2213
約数の個数: 72
約数和(自身を含む): 577949120
約数和(自身を除く): 346440220

約数列:
[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 163, 175, 326, 350, 652, 700, 815, 1141, 1630, 2029, 2282, 3260, 4058, 4075, 4564, 5705, 8116, 8150, 10145, 11410, 14203, 16300, 20290, 22820, 28406, 28525, 40580, 50725, 56812, 57050, 71015, 101450, 114100, 142030, 202900, 284060, 330727, 355075, 661454, 710150, 1322908, 1420300, 1653635, 2315089, 3307270, 4630178, 6614540, 8268175, 9260356, 11575445, 16536350, 23150890, 33072700, 46301780, 57877225, 115754450, 231508900]

約数ペア:
[(1, 231508900), (2, 115754450), (4, 57877225), (5, 46301780), (7, 33072700), (10, 23150890), (14, 16536350), (20, 11575445), (25, 9260356), (28, 8268175), (35, 6614540), (50, 4630178), (70, 3307270), (100, 2315089), (140, 1653635), (163, 1420300), (175, 1322908), (326, 710150), (350, 661454), (652, 355075), (700, 330727), (815, 284060), (1141, 202900), (1630, 142030), (2029, 114100), (2282, 101450), (3260, 71015), (4058, 57050), (4075, 56812), (4564, 50725), (5705, 40580), (8116, 28525), (8150, 28406), (10145, 22820), (11410, 20290), (14203, 16300)]

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