20198788

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{101}}^1\times {\mathrm{173}}^1$

素因数の和:312

約数の個数: 36

約数和(自身を含む): 38140452

約数和(自身を除く): 17941664

約数列:

[1, 2, 4, 17, 34, 68, 101, 173, 202, 289, 346, 404, 578, 692, 1156, 1717, 2941, 3434, 5882, 6868, 11764, 17473, 29189, 34946, 49997, 58378, 69892, 99994, 116756, 199988, 297041, 594082, 1188164, 5049697, 10099394, 20198788]

約数ペア:

[(1, 20198788), (2, 10099394), (4, 5049697), (17, 1188164), (34, 594082), (68, 297041), (101, 199988), (173, 116756), (202, 99994), (289, 69892), (346, 58378), (404, 49997), (578, 34946), (692, 29189), (1156, 17473), (1717, 11764), (2941, 6868), (3434, 5882)]