31145560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{383}}^1$

素因数の和:520

約数の個数: 64

約数和(自身を含む): 74649600

約数和(自身を除く): 43504040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 107, 152, 190, 214, 380, 383, 428, 535, 760, 766, 856, 1070, 1532, 1915, 2033, 2140, 3064, 3830, 4066, 4280, 7277, 7660, 8132, 10165, 14554, 15320, 16264, 20330, 29108, 36385, 40660, 40981, 58216, 72770, 81320, 81962, 145540, 163924, 204905, 291080, 327848, 409810, 778639, 819620, 1557278, 1639240, 3114556, 3893195, 6229112, 7786390, 15572780, 31145560]

約数ペア:

[(1, 31145560), (2, 15572780), (4, 7786390), (5, 6229112), (8, 3893195), (10, 3114556), (19, 1639240), (20, 1557278), (38, 819620), (40, 778639), (76, 409810), (95, 327848), (107, 291080), (152, 204905), (190, 163924), (214, 145540), (380, 81962), (383, 81320), (428, 72770), (535, 58216), (760, 40981), (766, 40660), (856, 36385), (1070, 29108), (1532, 20330), (1915, 16264), (2033, 15320), (2140, 14554), (3064, 10165), (3830, 8132), (4066, 7660), (4280, 7277)]