64512520

素因数分解:

$2^3\times 5^1\times {\mathrm{383}}^1\times {\mathrm{4211}}^1$

素因数の和:4605

約数の個数: 32

約数和(自身を含む): 145566720

約数和(自身を除く): 81054200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 383, 766, 1532, 1915, 3064, 3830, 4211, 7660, 8422, 15320, 16844, 21055, 33688, 42110, 84220, 168440, 1612813, 3225626, 6451252, 8064065, 12902504, 16128130, 32256260, 64512520]

約数ペア:

[(1, 64512520), (2, 32256260), (4, 16128130), (5, 12902504), (8, 8064065), (10, 6451252), (20, 3225626), (40, 1612813), (383, 168440), (766, 84220), (1532, 42110), (1915, 33688), (3064, 21055), (3830, 16844), (4211, 15320), (7660, 8422)]