857890

素因数分解:

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

素因数の和:738

約数の個数: 24

約数和(自身を含む): 1699740

約数和(自身を除く): 841850

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 709, 1210, 1418, 3545, 7090, 7799, 15598, 38995, 77990, 85789, 171578, 428945, 857890]

約数ペア:

[(1, 857890), (2, 428945), (5, 171578), (10, 85789), (11, 77990), (22, 38995), (55, 15598), (110, 7799), (121, 7090), (242, 3545), (605, 1418), (709, 1210)]