About the Number

31328790

31328789 ← → 31328791

2進数表記:1110111100000101000010110

漢数字表記:三千百三十二万八千七百九十

素因数分解:

2 1 × 3 1 × 5 1 × 17 1 × 47 1 × 1307 1

素因数の和:1381
約数の個数: 64
約数和(自身を含む): 81368064
約数和(自身を除く): 50039274

約数列:
[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 47, 51, 85, 94, 102, 141, 170, 235, 255, 282, 470, 510, 705, 799, 1307, 1410, 1598, 2397, 2614, 3921, 3995, 4794, 6535, 7842, 7990, 11985, 13070, 19605, 22219, 23970, 39210, 44438, 61429, 66657, 111095, 122858, 133314, 184287, 222190, 307145, 333285, 368574, 614290, 666570, 921435, 1044293, 1842870, 2088586, 3132879, 5221465, 6265758, 10442930, 15664395, 31328790]

約数ペア:
[(1, 31328790), (2, 15664395), (3, 10442930), (5, 6265758), (6, 5221465), (10, 3132879), (15, 2088586), (17, 1842870), (30, 1044293), (34, 921435), (47, 666570), (51, 614290), (85, 368574), (94, 333285), (102, 307145), (141, 222190), (170, 184287), (235, 133314), (255, 122858), (282, 111095), (470, 66657), (510, 61429), (705, 44438), (799, 39210), (1307, 23970), (1410, 22219), (1598, 19605), (2397, 13070), (2614, 11985), (3921, 7990), (3995, 7842), (4794, 6535)]

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