20165718310

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1\times {\mathrm{71987}}^1$

素因数の和:72360

約数の個数: 32

約数和(自身を含む): 36774349920

約数和(自身を除く): 16608631610

約数列:

[1, 2, 5, 10, 109, 218, 257, 514, 545, 1090, 1285, 2570, 28013, 56026, 71987, 140065, 143974, 280130, 359935, 719870, 7846583, 15693166, 18500659, 37001318, 39232915, 78465830, 92503295, 185006590, 2016571831, 4033143662, 10082859155, 20165718310]

約数ペア:

[(1, 20165718310), (2, 10082859155), (5, 4033143662), (10, 2016571831), (109, 185006590), (218, 92503295), (257, 78465830), (514, 39232915), (545, 37001318), (1090, 18500659), (1285, 15693166), (2570, 7846583), (28013, 719870), (56026, 359935), (71987, 280130), (140065, 143974)]