28700120

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{10709}}^1$

素因数の和:10787

約数の個数: 32

約数和(自身を含む): 65545200

約数和(自身を除く): 36845080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 10709, 21418, 42836, 53545, 85672, 107090, 214180, 428360, 717503, 1435006, 2870012, 3587515, 5740024, 7175030, 14350060, 28700120]

約数ペア:

[(1, 28700120), (2, 14350060), (4, 7175030), (5, 5740024), (8, 3587515), (10, 2870012), (20, 1435006), (40, 717503), (67, 428360), (134, 214180), (268, 107090), (335, 85672), (536, 53545), (670, 42836), (1340, 21418), (2680, 10709)]