About the Number

121552020

121552019 ← → 121552021

2進数表記:111001111101011110010010100

漢数字表記:一億二千百五十五万二千二十

素因数分解:

2 2 × 3 2 × 5 1 × 353 1 × 1913 1

素因数の和:2281
約数の個数: 72
約数和(自身を含む): 369945576
約数和(自身を除く): 248393556

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 353, 706, 1059, 1412, 1765, 1913, 2118, 3177, 3530, 3826, 4236, 5295, 5739, 6354, 7060, 7652, 9565, 10590, 11478, 12708, 15885, 17217, 19130, 21180, 22956, 28695, 31770, 34434, 38260, 57390, 63540, 68868, 86085, 114780, 172170, 344340, 675289, 1350578, 2025867, 2701156, 3376445, 4051734, 6077601, 6752890, 8103468, 10129335, 12155202, 13505780, 20258670, 24310404, 30388005, 40517340, 60776010, 121552020]

約数ペア:
[(1, 121552020), (2, 60776010), (3, 40517340), (4, 30388005), (5, 24310404), (6, 20258670), (9, 13505780), (10, 12155202), (12, 10129335), (15, 8103468), (18, 6752890), (20, 6077601), (30, 4051734), (36, 3376445), (45, 2701156), (60, 2025867), (90, 1350578), (180, 675289), (353, 344340), (706, 172170), (1059, 114780), (1412, 86085), (1765, 68868), (1913, 63540), (2118, 57390), (3177, 38260), (3530, 34434), (3826, 31770), (4236, 28695), (5295, 22956), (5739, 21180), (6354, 19130), (7060, 17217), (7652, 15885), (9565, 12708), (10590, 11478)]

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