About the Number

31282920

31282919 ← → 31282921

2進数表記:1110111010101011011101000

漢数字表記:三千百二十八万二千九百二十

素因数分解:

2 3 × 3 2 × 5 1 × 113 1 × 769 1

素因数の和:899
約数の個数: 96
約数和(自身を含む): 102702600
約数和(自身を除く): 71419680

約数列:
[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 113, 120, 180, 226, 339, 360, 452, 565, 678, 769, 904, 1017, 1130, 1356, 1538, 1695, 2034, 2260, 2307, 2712, 3076, 3390, 3845, 4068, 4520, 4614, 5085, 6152, 6780, 6921, 7690, 8136, 9228, 10170, 11535, 13560, 13842, 15380, 18456, 20340, 23070, 27684, 30760, 34605, 40680, 46140, 55368, 69210, 86897, 92280, 138420, 173794, 260691, 276840, 347588, 434485, 521382, 695176, 782073, 868970, 1042764, 1303455, 1564146, 1737940, 2085528, 2606910, 3128292, 3475880, 3910365, 5213820, 6256584, 7820730, 10427640, 15641460, 31282920]

約数ペア:
[(1, 31282920), (2, 15641460), (3, 10427640), (4, 7820730), (5, 6256584), (6, 5213820), (8, 3910365), (9, 3475880), (10, 3128292), (12, 2606910), (15, 2085528), (18, 1737940), (20, 1564146), (24, 1303455), (30, 1042764), (36, 868970), (40, 782073), (45, 695176), (60, 521382), (72, 434485), (90, 347588), (113, 276840), (120, 260691), (180, 173794), (226, 138420), (339, 92280), (360, 86897), (452, 69210), (565, 55368), (678, 46140), (769, 40680), (904, 34605), (1017, 30760), (1130, 27684), (1356, 23070), (1538, 20340), (1695, 18456), (2034, 15380), (2260, 13842), (2307, 13560), (2712, 11535), (3076, 10170), (3390, 9228), (3845, 8136), (4068, 7690), (4520, 6921), (4614, 6780), (5085, 6152)]

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