129487960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{1487}}^1$

素因数の和:1816

約数の個数: 64

約数和(自身を含む): 334264320

約数和(自身を除く): 204776360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 311, 622, 1244, 1487, 1555, 2177, 2488, 2974, 3110, 4354, 5948, 6220, 7435, 8708, 10409, 10885, 11896, 12440, 14870, 17416, 20818, 21770, 29740, 41636, 43540, 52045, 59480, 83272, 87080, 104090, 208180, 416360, 462457, 924914, 1849828, 2312285, 3237199, 3699656, 4624570, 6474398, 9249140, 12948796, 16185995, 18498280, 25897592, 32371990, 64743980, 129487960]

約数ペア:

[(1, 129487960), (2, 64743980), (4, 32371990), (5, 25897592), (7, 18498280), (8, 16185995), (10, 12948796), (14, 9249140), (20, 6474398), (28, 4624570), (35, 3699656), (40, 3237199), (56, 2312285), (70, 1849828), (140, 924914), (280, 462457), (311, 416360), (622, 208180), (1244, 104090), (1487, 87080), (1555, 83272), (2177, 59480), (2488, 52045), (2974, 43540), (3110, 41636), (4354, 29740), (5948, 21770), (6220, 20818), (7435, 17416), (8708, 14870), (10409, 12440), (10885, 11896)]