20012868

素因数分解:

$2^2\times 3^2\times {\mathrm{569}}^1\times {\mathrm{977}}^1$

素因数の和:1556

約数の個数: 36

約数和(自身を含む): 50728860

約数和(自身を除く): 30715992

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 569, 977, 1138, 1707, 1954, 2276, 2931, 3414, 3908, 5121, 5862, 6828, 8793, 10242, 11724, 17586, 20484, 35172, 555913, 1111826, 1667739, 2223652, 3335478, 5003217, 6670956, 10006434, 20012868]

約数ペア:

[(1, 20012868), (2, 10006434), (3, 6670956), (4, 5003217), (6, 3335478), (9, 2223652), (12, 1667739), (18, 1111826), (36, 555913), (569, 35172), (977, 20484), (1138, 17586), (1707, 11724), (1954, 10242), (2276, 8793), (2931, 6828), (3414, 5862), (3908, 5121)]