About the Number

31129380

31129379 ← → 31129381

2進数表記:1110110101111111100100100

漢数字表記:三千百十二万九千三百八十

素因数分解:

2 2 × 3 3 × 5 1 × 17 1 × 3391 1

素因数の和:3426
約数の個数: 96
約数和(自身を含む): 102574080
約数和(自身を除く): 71444700

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, 3391, 4590, 6782, 9180, 10173, 13564, 16955, 20346, 30519, 33910, 40692, 50865, 57647, 61038, 67820, 91557, 101730, 115294, 122076, 152595, 172941, 183114, 203460, 230588, 288235, 305190, 345882, 366228, 457785, 518823, 576470, 610380, 691764, 864705, 915570, 1037646, 1152940, 1556469, 1729410, 1831140, 2075292, 2594115, 3112938, 3458820, 5188230, 6225876, 7782345, 10376460, 15564690, 31129380]

約数ペア:
[(1, 31129380), (2, 15564690), (3, 10376460), (4, 7782345), (5, 6225876), (6, 5188230), (9, 3458820), (10, 3112938), (12, 2594115), (15, 2075292), (17, 1831140), (18, 1729410), (20, 1556469), (27, 1152940), (30, 1037646), (34, 915570), (36, 864705), (45, 691764), (51, 610380), (54, 576470), (60, 518823), (68, 457785), (85, 366228), (90, 345882), (102, 305190), (108, 288235), (135, 230588), (153, 203460), (170, 183114), (180, 172941), (204, 152595), (255, 122076), (270, 115294), (306, 101730), (340, 91557), (459, 67820), (510, 61038), (540, 57647), (612, 50865), (765, 40692), (918, 33910), (1020, 30519), (1530, 20346), (1836, 16955), (2295, 13564), (3060, 10173), (3391, 9180), (4590, 6782)]

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