About the Number

1270245780

1270245779 ← → 1270245781

2進数表記:1001011101101100110100110010100

漢数字表記:十二億七千二十四万五千七百八十

素因数分解:

2 2 × 3 3 × 5 1 × 17 1 × 138371 1

素因数の和:138406
約数の個数: 96
約数和(自身を含む): 4184369280
約数和(自身を除く): 2914123500

約数列:
[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 27, 30, 34, 36, 45, 51, 54, 60, 68, 85, 90, 102, 108, 135, 153, 170, 180, 204, 255, 270, 306, 340, 459, 510, 540, 612, 765, 918, 1020, 1530, 1836, 2295, 3060, 4590, 9180, 138371, 276742, 415113, 553484, 691855, 830226, 1245339, 1383710, 1660452, 2075565, 2352307, 2490678, 2767420, 3736017, 4151130, 4704614, 4981356, 6226695, 7056921, 7472034, 8302260, 9409228, 11761535, 12453390, 14113842, 14944068, 18680085, 21170763, 23523070, 24906780, 28227684, 35284605, 37360170, 42341526, 47046140, 63512289, 70569210, 74720340, 84683052, 105853815, 127024578, 141138420, 211707630, 254049156, 317561445, 423415260, 635122890, 1270245780]

約数ペア:
[(1, 1270245780), (2, 635122890), (3, 423415260), (4, 317561445), (5, 254049156), (6, 211707630), (9, 141138420), (10, 127024578), (12, 105853815), (15, 84683052), (17, 74720340), (18, 70569210), (20, 63512289), (27, 47046140), (30, 42341526), (34, 37360170), (36, 35284605), (45, 28227684), (51, 24906780), (54, 23523070), (60, 21170763), (68, 18680085), (85, 14944068), (90, 14113842), (102, 12453390), (108, 11761535), (135, 9409228), (153, 8302260), (170, 7472034), (180, 7056921), (204, 6226695), (255, 4981356), (270, 4704614), (306, 4151130), (340, 3736017), (459, 2767420), (510, 2490678), (540, 2352307), (612, 2075565), (765, 1660452), (918, 1383710), (1020, 1245339), (1530, 830226), (1836, 691855), (2295, 553484), (3060, 415113), (4590, 276742), (9180, 138371)]

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