162640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1$

素因数の和:139

約数の個数: 40

約数和(自身を含む): 401760

約数和(自身を除く): 239120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 107, 152, 190, 214, 304, 380, 428, 535, 760, 856, 1070, 1520, 1712, 2033, 2140, 4066, 4280, 8132, 8560, 10165, 16264, 20330, 32528, 40660, 81320, 162640]

約数ペア:

[(1, 162640), (2, 81320), (4, 40660), (5, 32528), (8, 20330), (10, 16264), (16, 10165), (19, 8560), (20, 8132), (38, 4280), (40, 4066), (76, 2140), (80, 2033), (95, 1712), (107, 1520), (152, 1070), (190, 856), (214, 760), (304, 535), (380, 428)]