31070920

素因数分解:

$2^3\times 5^1\times {\mathrm{829}}^1\times {\mathrm{937}}^1$

素因数の和:1777

約数の個数: 32

約数和(自身を含む): 70068600

約数和(自身を除く): 38997680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 829, 937, 1658, 1874, 3316, 3748, 4145, 4685, 6632, 7496, 8290, 9370, 16580, 18740, 33160, 37480, 776773, 1553546, 3107092, 3883865, 6214184, 7767730, 15535460, 31070920]

約数ペア:

[(1, 31070920), (2, 15535460), (4, 7767730), (5, 6214184), (8, 3883865), (10, 3107092), (20, 1553546), (40, 776773), (829, 37480), (937, 33160), (1658, 18740), (1874, 16580), (3316, 9370), (3748, 8290), (4145, 7496), (4685, 6632)]