69777440

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4001}}^1$

素因数の和:4125

約数の個数: 48

約数和(自身を含む): 166403160

約数和(自身を除く): 96625720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1744, 2180, 3488, 4001, 4360, 8002, 8720, 16004, 17440, 20005, 32008, 40010, 64016, 80020, 128032, 160040, 320080, 436109, 640160, 872218, 1744436, 2180545, 3488872, 4361090, 6977744, 8722180, 13955488, 17444360, 34888720, 69777440]

約数ペア:

[(1, 69777440), (2, 34888720), (4, 17444360), (5, 13955488), (8, 8722180), (10, 6977744), (16, 4361090), (20, 3488872), (32, 2180545), (40, 1744436), (80, 872218), (109, 640160), (160, 436109), (218, 320080), (436, 160040), (545, 128032), (872, 80020), (1090, 64016), (1744, 40010), (2180, 32008), (3488, 20005), (4001, 17440), (4360, 16004), (8002, 8720)]