8381420

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{7907}}^1$

素因数の和:7969

約数の個数: 24

約数和(自身を含む): 17935344

約数和(自身を除く): 9553924

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 7907, 15814, 31628, 39535, 79070, 158140, 419071, 838142, 1676284, 2095355, 4190710, 8381420]

約数ペア:

[(1, 8381420), (2, 4190710), (4, 2095355), (5, 1676284), (10, 838142), (20, 419071), (53, 158140), (106, 79070), (212, 39535), (265, 31628), (530, 15814), (1060, 7907)]