20199410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{709}}^1$

素因数の和:771

約数の個数: 64

約数和(自身を含む): 46621440

約数和(自身を除く): 26422030

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 37, 55, 70, 74, 77, 110, 154, 185, 259, 370, 385, 407, 518, 709, 770, 814, 1295, 1418, 2035, 2590, 2849, 3545, 4070, 4963, 5698, 7090, 7799, 9926, 14245, 15598, 24815, 26233, 28490, 38995, 49630, 52466, 54593, 77990, 109186, 131165, 183631, 262330, 272965, 288563, 367262, 545930, 577126, 918155, 1442815, 1836310, 2019941, 2885630, 4039882, 10099705, 20199410]

約数ペア:

[(1, 20199410), (2, 10099705), (5, 4039882), (7, 2885630), (10, 2019941), (11, 1836310), (14, 1442815), (22, 918155), (35, 577126), (37, 545930), (55, 367262), (70, 288563), (74, 272965), (77, 262330), (110, 183631), (154, 131165), (185, 109186), (259, 77990), (370, 54593), (385, 52466), (407, 49630), (518, 38995), (709, 28490), (770, 26233), (814, 24815), (1295, 15598), (1418, 14245), (2035, 9926), (2590, 7799), (2849, 7090), (3545, 5698), (4070, 4963)]